Tomaszewicz, Keith
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education and training: University of Massachusetts Dartmouth, Clinical Laboratory Scientist
research areas: High-Throughput Nucleotide Sequencing
research areas: Carcinoma, Squamous Cell
research areas: Mutation
research areas: Anus Neoplasms
research areas: Biomarkers, Tumor
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https://profiles.umassmed.edu/profile/102880740
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link anchor text: Proposals for Next Classification Schema of Myeloid Neoplasms

Anus Neoplasms
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linked information resource: BRAF/KRAS gene sequencing of sebaceous neoplasms after mismatch repair protein analysis.

BRAF/KRAS gene sequencing of sebaceous neoplasms after mismatch repair protein analysis.
PubMed Identifier: 24767862
author list: Cornejo KM, Hutchinson L, Deng A, Tomaszewicz K, Welch M, Lyle S, Dresser K, Cosar EF
published in: Human pathology
information resource reference: Cornejo KM, Hutchinson L, Deng A, Tomaszewicz K, Welch M, Lyle S, Dresser K, Cosar EF. BRAF/KRAS gene sequencing of sebaceous neoplasms after mismatch repair protein analysis. Hum Pathol. 2014 Jun; 45(6):1213-20.
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Carcinoma, Squamous Cell
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linked information resource: The utility of MYC and FLT4 in the diagnosis and treatment of postradiation atypical vascular lesion and angiosarcoma of the breast.

The utility of MYC and FLT4 in the diagnosis and treatment of postradiation atypical vascular lesion and angiosarcoma of the breast.
PubMed Identifier: 25864386
author list: Cornejo KM, Deng A, Wu H, Cosar EF, Khan A, St Cyr M, Tomaszewicz K, Dresser K, O'Donnell P, Hutchinson L
published in: Human pathology
information resource reference: Cornejo KM, Deng A, Wu H, Cosar EF, Khan A, St Cyr M, Tomaszewicz K, Dresser K, O'Donnell P, Hutchinson L. The utility of MYC and FLT4 in the diagnosis and treatment of postradiation atypical vascular lesion and angiosarcoma of the breast. Hum Pathol. 2015 Jun; 46(6):868-75.
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linked information resource: Detection of homozygous and heterozygous SMN deletions of spinal muscular atrophy in a single assay with multiplex ligation-dependent probe amplification.

Authorship 12664
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linked information resource: Development of a focused oligonucleotide-array comparative genomic hybridization chip for clinical diagnosis of genomic imbalance.

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https://profiles.umassmed.edu/profile/13458000
author list: 1. Wei Xing MD, PhD1, 2. Xiuling Meng1, 3. Yiqin Xiong1, 4. Keith Tomaszewicz B.S, MT(ASCP)1, 5. Bruce A Woda MD1, 6. Ediz F. Cosar MD1 and 7. Lloyd Hutchinson PhD1.
published in: Next Generation Sequencing (NGS) of Somatic Mutations for Residual Disease Detection of Plasma. Cell Neoplasms in Instances of a PCR Negative Immunoglobulin Gene Rearrangement Assays. (2016 United States & Canadian Academy of Pathology Annual Meeting)
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UMass Chan – Baystate Regional Campus
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Somatic mutations in histiocytic sarcoma identified by next generation sequencing.
PubMed Identifier: 27259537
author list: Liu Q, Tomaszewicz K, Hutchinson L, Hornick JL, Woda B, Yu H
published in: Virchows Archiv : an international journal of pathology
information resource reference: Liu Q, Tomaszewicz K, Hutchinson L, Hornick JL, Woda B, Yu H. Somatic mutations in histiocytic sarcoma identified by next generation sequencing. Virchows Arch. 2016 Aug; 469(2):233-41.
journal title abbreviation: Virchows Arch
publication date: 2016-06-03T00:00:00
year: 2016
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https://profiles.umassmed.edu/profile/14520123
PubMed Identifier: 26915300
author list: Kamionek M, Ahmadi Moghaddam P, Sakhdari A, Kovach AE, Welch M, Meng X, Dresser K, Tomaszewicz K, Cosar EF, Mark EJ, Fraire AE, Hutchinson L
published in: Histopathology
information resource reference: Kamionek M, Ahmadi Moghaddam P, Sakhdari A, Kovach AE, Welch M, Meng X, Dresser K, Tomaszewicz K, Cosar EF, Mark EJ, Fraire AE, Hutchinson L. Mutually exclusive extracellular signal-regulated kinase pathway mutations are present in different stages of multi-focal pulmonary Langerhans cell histiocytosis supporting clonal nature of the disease. Histopathology. 2016 Sep; 69(3):499-509.
journal title abbreviation: Histopathology
publication date: 2016-04-29T00:00:00
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label: Mutually exclusive extracellular signal-regulated kinase pathway mutations are present in different stages of multi-focal pulmonary Langerhans cell histiocytosis supporting clonal nature of the disease.

Authorship 63828
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Authorship 63829
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linked information resource: Somatic mutations in histiocytic sarcoma identified by next generation sequencing.

Immunohistochemical loss of 5-hydroxymethylcytosine expression in acute myeloid leukaemia: relationship to somatic gene mutations affecting epigenetic pathways.
PubMed Identifier: 27458708
author list: Magotra M, Sakhdari A, Lee PJ, Tomaszewicz K, Dresser K, Hutchinson LM, Woda BA, Chen BJ
published in: Histopathology
information resource reference: Magotra M, Sakhdari A, Lee PJ, Tomaszewicz K, Dresser K, Hutchinson LM, Woda BA, Chen BJ. Immunohistochemical loss of 5-hydroxymethylcytosine expression in acute myeloid leukaemia: relationship to somatic gene mutations affecting epigenetic pathways. Histopathology. 2016 Dec; 69(6):1055-1065.
journal title abbreviation: Histopathology
publication date: 2016-09-23T00:00:00
year: 2016
type: Academic Article
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Authorship 66542
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linked information resource: Complete Spontaneous Regression of Merkel Cell Carcinoma After Biopsy: A Case Report and Review of the Literature.

Complete Spontaneous Regression of Merkel Cell Carcinoma After Biopsy: A Case Report and Review of the Literature.
PubMed Identifier: 27759689
author list: Ahmadi Moghaddam P, Cornejo KM, Hutchinson L, Tomaszewicz K, Dresser K, Deng A, O'Donnell P
published in: The American Journal of dermatopathology
information resource reference: Ahmadi Moghaddam P, Cornejo KM, Hutchinson L, Tomaszewicz K, Dresser K, Deng A, O'Donnell P. Complete Spontaneous Regression of Merkel Cell Carcinoma After Biopsy: A Case Report and Review of the Literature. Am J Dermatopathol. 2016 Nov; 38(11):e154-e158.
journal title abbreviation: Am J Dermatopathol
publication date: 2016-11-01T00:00:00
year: 2016
type: Academic Article
type: Article
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type: Information Resource

Authorship 67237
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linked author: Tomaszewicz, Keith
linked information resource: Immunohistochemical loss of 5-hydroxymethylcytosine expression in acute myeloid leukaemia: relationship to somatic gene mutations affecting epigenetic pathways.

University of Massachusetts Dartmouth, Clinical Laboratory Scientist
educational organization: University of Massachusetts Dartmouth
training location: Dartmouth, MA, United States
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degree earned: BS
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Elaba, Zendee
first name: Zendee
last name: Elaba
full name: Zendee Rose Plateros Elaba MD
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IRS2 mutations linked to invasion in pleomorphic invasive lobular carcinoma.
PubMed Identifier: 29669935
author list: Zhu S, Ward BM, Yu J, Matthew-Onabanjo AN, Janusis J, Hsieh CC, Tomaszewicz K, Hutchinson L, Zhu LJ, Kandil D, Shaw LM
published in: JCI insight
information resource reference: Zhu S, Ward BM, Yu J, Matthew-Onabanjo AN, Janusis J, Hsieh CC, Tomaszewicz K, Hutchinson L, Zhu LJ, Kandil D, Shaw LM. IRS2 mutations linked to invasion in pleomorphic invasive lobular carcinoma. JCI Insight. 2018 04 19; 3(8).
journal title abbreviation: JCI Insight
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Tjionas, George
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linked information resource: IRS2 mutations linked to invasion in pleomorphic invasive lobular carcinoma.

Authorship 78333
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linked information resource: Next-Generation Sequencing to Detect Deletion of RB1 and ERBB4 Genes in Chromophobe Renal Cell Carcinoma: A Potential Role in Distinguishing Chromophobe Renal Cell Carcinoma from Renal Oncocytoma.

Authorship 79235
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linked information resource: Heterogeneous mutational profile and prognosis conferred by TP53 mutations in appendiceal mucinous neoplasms.

Heterogeneous mutational profile and prognosis conferred by TP53 mutations in appendiceal mucinous neoplasms.
PubMed Identifier: 30458197
author list: Zhu X, Salhab M, Tomaszewicz K, Meng X, Mathew C, Bathini V, Switzer B, Walter O, Cosar EF, Wang X, Lambert LA, Hutchinson LM
published in: Human pathology
information resource reference: Zhu X, Salhab M, Tomaszewicz K, Meng X, Mathew C, Bathini V, Switzer B, Walter O, Cosar EF, Wang X, Lambert LA, Hutchinson LM. Heterogeneous mutational profile and prognosis conferred by TP53 mutations in appendiceal mucinous neoplasms. Hum Pathol. 2019 03; 85:260-269.
journal title abbreviation: Hum Pathol
publication date: 2018-11-17T00:00:00
year: 2018
type: Academic Article
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type: Document
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Next-Generation Sequencing to Detect Deletion of RB1 and ERBB4 Genes in Chromophobe Renal Cell Carcinoma: A Potential Role in Distinguishing Chromophobe Renal Cell Carcinoma from Renal Oncocytoma.
PubMed Identifier: 29353061
author list: Liu Q, Cornejo KM, Cheng L, Hutchinson L, Wang M, Zhang S, Tomaszewicz K, Cosar EF, Woda BA, Jiang Z
published in: The American journal of pathology
information resource reference: Liu Q, Cornejo KM, Cheng L, Hutchinson L, Wang M, Zhang S, Tomaszewicz K, Cosar EF, Woda BA, Jiang Z. Next-Generation Sequencing to Detect Deletion of RB1 and ERBB4 Genes in Chromophobe Renal Cell Carcinoma: A Potential Role in Distinguishing Chromophobe Renal Cell Carcinoma from Renal Oncocytoma. Am J Pathol. 2018 04; 188(4):846-852.
journal title abbreviation: Am J Pathol
publication date: 2018-01-31T00:00:00
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type: Academic Article
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type: Information Resource

Selove, William
first name: William
last name: Selove
full name: William Joseph Selove MD
has faculty rank: Assistant Professor
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Authorship 85650
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linked information resource: Somatic molecular analysis augments cytologic evaluation of pancreatic cyst fluids as a diagnostic tool.

Somatic molecular analysis augments cytologic evaluation of pancreatic cyst fluids as a diagnostic tool.
PubMed Identifier: 31258847
author list: Sakhdari A, Moghaddam PA, Ok CY, Walter O, Tomaszewicz K, Caporelli ML, Meng X, LaFemina J, Whalen G, Belkin E, Zivny J, Wassef W, Woda BA, Hutchinson LM, Cosar EF
published in: Oncotarget
information resource reference: Sakhdari A, Moghaddam PA, Ok CY, Walter O, Tomaszewicz K, Caporelli ML, Meng X, LaFemina J, Whalen G, Belkin E, Zivny J, Wassef W, Woda BA, Hutchinson LM, Cosar EF. Somatic molecular analysis augments cytologic evaluation of pancreatic cyst fluids as a diagnostic tool. Oncotarget. 2019 Jun 18; 10(40):4026-4037.
journal title abbreviation: Oncotarget
publication date: 2019-06-18T00:00:00
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type: Academic Article
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Clark, Jennifer Lynn
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Khedr, Salwa
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Patel, Shyam
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linked information resource: Mutational Profile Using Next-Generation Sequencing May Aid in the Diagnosis and Treatment of Urachal Adenocarcinoma.

Mutational Profile Using Next-Generation Sequencing May Aid in the Diagnosis and Treatment of Urachal Adenocarcinoma.
PubMed Identifier: 31496327
author list: Cornejo KM, Cosar EF, Paner GP, Yang P, Tomaszewicz K, Meng X, Mehta V, Sirintrapun SJ, Barkan GA, Hutchinson L
published in: International journal of surgical pathology
information resource reference: Cornejo KM, Cosar EF, Paner GP, Yang P, Tomaszewicz K, Meng X, Mehta V, Sirintrapun SJ, Barkan GA, Hutchinson L. Mutational Profile Using Next-Generation Sequencing May Aid in the Diagnosis and Treatment of Urachal Adenocarcinoma. Int J Surg Pathol. 2020 Feb; 28(1):51-59.
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linked information resource: Comparison of c-KIT and S-100 IHC staining patterns in vulvar malignant melanoma. 2012

Zou, Tianle
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linked information resource: BRAF/KRAS Gene Sequencing of Sebaceous Neoplams Following Mismatch Repair Protein Analysis. 2013

Authorship 96547
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linked information resource: Molecular and immunophenotypic characterization of anal squamous cell carcinoma reveals distinct clinicopathologic groups associated with HPV and TP53 mutation status.

Molecular and immunophenotypic characterization of anal squamous cell carcinoma reveals distinct clinicopathologic groups associated with HPV and TP53 mutation status.
PubMed Identifier: 33483624
author list: Zhu X, Jamshed S, Zou J, Azar A, Meng X, Bathini V, Dresser K, Strock C, Yalamarti B, Yang M, Tomaszewicz K, Tjionas G, Mochel MC, Hutchinson L, Bledsoe JR
published in: Modern pathology : an official journal of the United States and Canadian Academy of Pathology, Inc
information resource reference: Zhu X, Jamshed S, Zou J, Azar A, Meng X, Bathini V, Dresser K, Strock C, Yalamarti B, Yang M, Tomaszewicz K, Tjionas G, Mochel MC, Hutchinson L, Bledsoe JR. Molecular and immunophenotypic characterization of anal squamous cell carcinoma reveals distinct clinicopathologic groups associated with HPV and TP53 mutation status. Mod Pathol. 2021 05; 34(5):1017-1030.
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linked information resource: BRAF Mutation Analysis in Pulmonary Langerhans Cell Histiocytosis. A case study of 26 cases. 2013

Authorship 24838
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linked information resource: Is it a primary or metastatic melanocytic neoplasm of the central nervous system?: A molecular based approach.

Diagnostic value of a comprehensive, urothelial carcinoma-specific next-generation sequencing panel in urine cytology and bladder tumor specimens.
PubMed Identifier: 33539671
author list: Sun T, Hutchinson L, Tomaszewicz K, Caporelli ML, Meng X, McCauley K, Fischer AH, Cosar EF, Cornejo KM
published in: Cancer cytopathology
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linked information resource: Diagnostic value of a comprehensive, urothelial carcinoma-specific next-generation sequencing panel in urine cytology and bladder tumor specimens.

Authorship 251
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linked information resource: https://profiles.umassmed.edu/profile/94887

Authorship 260
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linked information resource: Varicell-Zoster Virus Infection with Granulomatous Inflammation; Poster. The American Society of Dermatopathology Annual Meeting, Washington DC, October 10-13th, 2013

High-Throughput Nucleotide Sequencing
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Pathology at UMass Chan - Baystate
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Weiss, Glen
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linked information resource: Impact of pretransplant mutation status on survival after allogeneic stem cell transplant for acute myeloid leukemia.

Impact of pretransplant mutation status on survival after allogeneic stem cell transplant for acute myeloid leukemia.
PubMed Identifier: 35844698
author list: Selove W, Hutchinson L, Makarenko V, Meng X, Tomaszewicz K, Ramanathan M, Cerny J, Nath R, Chen B, Woda B, Bledsoe JR
published in: EJHaem
information resource reference: Selove W, Hutchinson L, Makarenko V, Meng X, Tomaszewicz K, Ramanathan M, Cerny J, Nath R, Chen B, Woda B, Bledsoe JR. Impact of pretransplant mutation status on survival after allogeneic stem cell transplant for acute myeloid leukemia. EJHaem. 2021 Aug; 2(3):514-519.
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linked information resource: Mass-Forming Gastric Heterotopia of the Rectum: A Series of 3 Cases from a Single Tertiary Health Center.

Mass-Forming Gastric Heterotopia of the Rectum: A Series of 3 Cases from a Single Tertiary Health Center.
PubMed Identifier: 35881563
author list: Covington JD, Zong Y, Talat A, Strock C, Tomaszewicz K, Zivny J, Yang MX
published in: The American journal of case reports
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https://profiles.umassmed.edu/profile/34526651
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linked information resource: Molecular Profiling of Syringocystadenocarcinoma Papilliferum Reveals RAS-Activating Mutations.

Molecular Profiling of Syringocystadenocarcinoma Papilliferum Reveals RAS-Activating Mutations.
PubMed Identifier: 37074845
author list: Cornejo KM, Hutchinson L, O'Donnell P, Meng X, Tomaszewicz K, Shalin SC, Cassarino DS, Chan MP, Quinn TR, Googe PB, Nazarian RM
published in: Archives of pathology & laboratory medicine
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Authorship 36
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linked information resource: Complete spontaneous regression of Merkel cell carcinoma after biopsy: A case report

Assistant Professor
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Health System Science
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Pulmonary Medicine
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Martinez, Fernando
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Endowed Chair Honorary Title: Joseph D. Early Chair in Biomedical Research
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linked information resource: Frameshift Mutations in Leukemia-Associated Genes Correlate With Superior Outcomes in Patients Undergoing Allogeneic Stem Cell Transplant for De Novo Acute Myeloid Leukemia.

Frameshift Mutations in Leukemia-Associated Genes Correlate With Superior Outcomes in Patients Undergoing Allogeneic Stem Cell Transplant for De Novo Acute Myeloid Leukemia.
PubMed Identifier: 38993741
author list: Cammann E, Madhav S, Hutchinson L, Cerny J, Ramanathan M, Bledsoe JR, Makarenko V, Patel SA, Meng X, Tomaszewicz K, Nath R, Chen B, Woda B, Selove W
published in: Journal of hematology
information resource reference: Cammann E, Madhav S, Hutchinson L, Cerny J, Ramanathan M, Bledsoe JR, Makarenko V, Patel SA, Meng X, Tomaszewicz K, Nath R, Chen B, Woda B, Selove W. Frameshift Mutations in Leukemia-Associated Genes Correlate With Superior Outcomes in Patients Undergoing Allogeneic Stem Cell Transplant for De Novo Acute Myeloid Leukemia. J Hematol. 2024 Jun; 13(3):86-93.
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Authorship 49187
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linked information resource: KRAS mutation analysis is a good adjunct to cytologic evaluation of pancreatic cyst fluids. 2011 Annual Meeting of American Molecular Pathology. Poster ST66, Solid Tumors category (11/16/11)

Authorship 77
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linked information resource: https://profiles.umassmed.edu/profile/74207

Associate Professor
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Instructor
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MYC and FLT4 Expression in Post-Radiation Atypical Vascular Lesion (AVL) and Angiosarcoma (AS) of the Breast
author list: Kristine M. Cornejo MD, Lloyd Hutchinson PhD, Ediz F. Cosar MD, Ashraf Khan MD, Keith Tomaszewicz MT (ASCP), Kathleen McCauley CG (ASCP), Hong Wu MD PhD, Karen Dresser BS HT (ASCP), Patrick O’Donnell DO, April Deng MD PhD. MYC and FLT4 Expression in Post-Radiation Atypical Vascular Lesion (AVL) and Angiosarcoma (AS) of the Breast.
information resource reference: Kristine M. Cornejo MD, Lloyd Hutchinson PhD, Ediz F. Cosar MD, Ashraf Khan MD, Keith Tomaszewicz MT (ASCP), Kathleen McCauley CG (ASCP), Hong Wu MD PhD, Karen Dresser BS HT (ASCP), Patrick O’Donnell DO, April Deng MD PhD. MYC and FLT4 Expression in Post-Radiation Atypical Vascular Lesion (AVL) and Angiosarcoma (AS) of the Breast. . MYC and FLT4 Expression in Post-Radiation Atypical Vascular Lesion (AVL) and Angiosarcoma (AS) of the Breast.
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Associate Professor
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https://profiles.umassmed.edu/profile/66233
author list: Cornejo, Kristine, Hutchinson L, Tomaszewicz K, Welch M, Deng A, Cosar E.
information resource reference: Cornejo, Kristine, Hutchinson L, Tomaszewicz K, Welch M, Deng A, Cosar E. Sebaceous tumors with loss of mismatch repair protein expression by immunohistochemistry and BRAF mutational analysis. 2011. 48th Annual Meeting of The American Society of Dermatopathology (ASDP), Seattle WA (10/20/11).
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label: Sebaceous tumors with loss of mismatch repair protein expression by immunohistochemistry and BRAF mutational analysis. 2011. 48th Annual Meeting of The American Society of Dermatopathology (ASDP), Seattle WA (10/20/11)

Comparison of c-KIT and S-100 IHC staining patterns in vulvar malignant melanoma. 2012
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information resource reference: Parnian Ahmadi Moghaddam MD, Keith Tomaszewicz BS (Molecular Specialist), Karen Dresser BS, LIoyd Hutchinson Ph.D, April Deng MD Ph.D. . Comparison of c-KIT and S-100 IHC staining patterns in vulvar malignant melanoma. 2012.
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https://profiles.umassmed.edu/profile/68544
author list: Hutchinson L, Paner GP, Tomaszewicz K, MehtaV, Sirintrapun SJ, Barkan GA and Cosar EF.
information resource reference: Hutchinson L, Paner GP, Tomaszewicz K, MehtaV, Sirintrapun SJ, Barkan GA and Cosar EF. . KRAS is Mutated in a Subset of Mucinous Type Urachal Adenocarcinomas (UAC). 2011. Minisymposium presentation & Abstract at the United States and Canadian Academy of Pathology Annual Meeting, Vancouver BC (01/14/12).
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label: KRAS is Mutated in a Subset of Mucinous Type Urachal Adenocarcinomas (UAC). 2011. Minisymposium presentation & Abstract at the United States and Canadian Academy of Pathology Annual Meeting, Vancouver BC (01/14/12)

Detection of homozygous and heterozygous SMN deletions of spinal muscular atrophy in a single assay with multiplex ligation-dependent probe amplification.
PubMed Identifier: 15719043
author list: Tomaszewicz K, Kang P, Wu BL
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information resource reference: Tomaszewicz K, Kang P, Wu BL. Detection of homozygous and heterozygous SMN deletions of spinal muscular atrophy in a single assay with multiplex ligation-dependent probe amplification. Beijing Da Xue Xue Bao Yi Xue Ban. 2005 Feb 18; 37(1):55-7.
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Varicell-Zoster Virus Infection with Granulomatous Inflammation; Poster. The American Society of Dermatopathology Annual Meeting, Washington DC, October 10-13th, 2013
author list: Mariko Yasuda MD, Keith Tomaszewicz BS, Marimeg Clairwood MD, Mary E Maloney MD, April Deng MD, Patrick O’Donnell DO
information resource reference: Mariko Yasuda MD, Keith Tomaszewicz BS, Marimeg Clairwood MD, Mary E Maloney MD, April Deng MD, Patrick O’Donnell DO. Varicell-Zoster Virus Infection with Granulomatous Inflammation; Poster. The American Society of Dermatopathology Annual Meeting, Washington DC, October 10-13th, 2013.
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Authorship 132229
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linked information resource: CYLD-mutated anal squamous cell carcinoma: An uncommon entity associated with cylindroma-like morphology and adverse clinical features.

CYLD-mutated anal squamous cell carcinoma: An uncommon entity associated with cylindroma-like morphology and adverse clinical features.
PubMed Identifier: 40180056
author list: Zhu X, Meng X, Mochel MC, Wiliams EA, Dresser K, Tomaszewicz K, Hutchinson L, Bledsoe JR
published in: Human pathology
information resource reference: Zhu X, Meng X, Mochel MC, Wiliams EA, Dresser K, Tomaszewicz K, Hutchinson L, Bledsoe JR. CYLD-mutated anal squamous cell carcinoma: An uncommon entity associated with cylindroma-like morphology and adverse clinical features. Hum Pathol. 2025 Mar; 157:105765.
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https://profiles.umassmed.edu/profile/74207
author list: Kamionek M, Hutchinson L, Tomaszewicz K, Cosar E.
information resource reference: Kamionek M, Hutchinson L, Tomaszewicz K, Cosar E. Intrathoracic desmoid tumor: A case report with mutation analysis of the CTNNB1 gene. Poster at the 2011 Biennial Meeting of the Pulmonary Pathology Society (PPS), Memorial Sloan Kettering Cancer Center.
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: Intrathoracic desmoid tumor: A case report with mutation analysis of the CTNNB1 gene. Poster at the 2011 Biennial Meeting of the Pulmonary Pathology Society (PPS), Memorial Sloan Kettering Cancer Center

https://profiles.umassmed.edu/profile/75009
author list: Frida Rosenblum M.D1, 2. Keith Tomaszewicz B.S (Molecular Specialist)1, 3. Maryann St. Cyr B.S1, 4. Andrew Fischer M.D.1, 5. Ediz F. Cosar M.D.1, 6. Elizabeth M. Kurian M.D.1 and 7. Lloyd Hutchinson Ph.D.
information resource reference: Frida Rosenblum M.D1, 2. Keith Tomaszewicz B.S (Molecular Specialist)1, 3. Maryann St. Cyr B.S1, 4. Andrew Fischer M.D.1, 5. Ediz F. Cosar M.D.1, 6. Elizabeth M. Kurian M.D.1 and 7. Lloyd Hutchinson Ph.D. . DNA qualitative and quantitative comparison of alcohol fixed cytology versus formalin fixed tissue for PNA clamp real-time PCR detection of KRAS, EGFR and BRAF. United States and Canadian Academy of Pathology Annual Meeting, Baltimore, MD. (3/2/2013).
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: DNA qualitative and quantitative comparison of alcohol fixed cytology versus formalin fixed tissue for PNA clamp real-time PCR detection of KRAS, EGFR and BRAF. United States and Canadian Academy of Pathology Annual Meeting, Baltimore, MD. (3/2/2013)

Complete spontaneous regression of Merkel cell carcinoma after biopsy: A case report
author list: Parnian Ahmadi Moghaddam MD, Keith Tomaszewicz BS (Molecular Specialist), Karen Dresser BS, Lloyd Hutchinson Ph.D, April Deng MD Ph.d, Patrick O’Donnell DO. Poster board # 324. The American Society of Dermatopathology Annual Meeting, Washington DC, October 10-13th, 2013.
information resource reference: Parnian Ahmadi Moghaddam MD, Keith Tomaszewicz BS (Molecular Specialist), Karen Dresser BS, Lloyd Hutchinson Ph.D, April Deng MD Ph.d, Patrick O’Donnell DO. Poster board # 324. The American Society of Dermatopathology Annual Meeting, Washington DC, October 10-13th, 2013. . Complete spontaneous regression of Merkel cell carcinoma after biopsy: A case report. 2013.
publication date: 2013-10-10T00:00:00
year: 2013
type: Academic Article
type: Article
type: Document
type: Information Resource

https://profiles.umassmed.edu/profile/79037
author list: Rosenblum F, Tomaszewicz K, Cosar EF, Hutchinson L, Fischer A.
information resource reference: Rosenblum F, Tomaszewicz K, Cosar EF, Hutchinson L, Fischer A. . Alcohol-fixed Rapid Cell block Cytology specimens provide an Effective Alternative to Formalin-Fixed Tissue for Real-time PCR assays in Lung Adenocarcinoma. 2012. United States and Canadian Academy of Pathology Annual Meeting, Baltimore, MD (03/02/13).
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: Alcohol-fixed Rapid Cell block Cytology specimens provide an Effective Alternative to Formalin-Fixed Tissue for Real-time PCR assays in Lung Adenocarcinoma. 2012. United States and Canadian Academy of Pathology Annual Meeting, Baltimore, MD (03/02/13)

https://profiles.umassmed.edu/profile/80183
author list: Ok CY, Welch M, Tomaszewicz K, Hutchinson L, Cosar EF.
information resource reference: Ok CY, Welch M, Tomaszewicz K, Hutchinson L, Cosar EF. . KRAS mutation in lipomas, atypical lipomatous tumors/well-differentiated liposarcomas (ATL) and dedifferentiated liposarcoma (DDLS). 2011. United States and Canadian Academy of Pathology Annual Meeting, Vancouver BC (01/14/12).
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: KRAS mutation in lipomas, atypical lipomatous tumors/well-differentiated liposarcomas (ATL) and dedifferentiated liposarcoma (DDLS). 2011. United States and Canadian Academy of Pathology Annual Meeting, Vancouver BC (01/14/12)

BRAF Mutation Analysis in Pulmonary Langerhans Cell Histiocytosis. A case study of 26 cases. 2013
author list: Michal Kamionek MD, Parnian Ahmadi Moghaddam MD, Kovach E Alexandra MD, Mathhew Welch BS, Keith Tomaszewicz BS, Lloyd Hutchinson Ph.D, Ediz Cosar MD, Euguine Kark MD, Armando Fraire.
information resource reference: Michal Kamionek MD, Parnian Ahmadi Moghaddam MD, Kovach E Alexandra MD, Mathhew Welch BS, Keith Tomaszewicz BS, Lloyd Hutchinson Ph.D, Ediz Cosar MD, Euguine Kark MD, Armando Fraire. BRAF Mutation Analysis in Pulmonary Langerhans Cell Histiocytosis. A case study of 26 cases. 2013.
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource

KRAS mutation analysis is a good adjunct to cytologic evaluation of pancreatic cyst fluids. 2011 Annual Meeting of American Molecular Pathology. Poster ST66, Solid Tumors category (11/16/11)
author list: Ok C-Y, Walter O, Hutchinson L, Belkin E, Tomaszewicz K, Wassef W, Woda B, Cosar E.
information resource reference: Ok C-Y, Walter O, Hutchinson L, Belkin E, Tomaszewicz K, Wassef W, Woda B, Cosar E. . KRAS mutation analysis is a good adjunct to cytologic evaluation of pancreatic cyst fluids. 2011 Annual Meeting of American Molecular Pathology. Poster ST66, Solid Tumors category (11/16/11).
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource

BRAF/KRAS Gene Sequencing of Sebaceous Neoplams Following Mismatch Repair Protein Analysis. 2013
author list: Kristine M. Cornejo MD, Lloyd Hutchinson PhD, April Deng MD, Keith Tomaszewicz BS, Matthew Welch BS, Stephen Lyle MD, Karen Dresser BS, Ediz Cosar MD.
information resource reference: Kristine M. Cornejo MD, Lloyd Hutchinson PhD, April Deng MD, Keith Tomaszewicz BS, Matthew Welch BS, Stephen Lyle MD, Karen Dresser BS, Ediz Cosar MD. . BRAF/KRAS Gene Sequencing of Sebaceous Neoplams Following Mismatch Repair Protein Analysis. 2013.
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource

Worcester MA 01605
type: Address
address line 1: UMass Chan Medical School
address line 2: One Innovation Drive
address line 3: Worcester MA 01605

https://profiles.umassmed.edu/profile/88314388
publication date: 2025
type: URLLink
label: https://www.onclive.com/view/ihc-testing-may-enable-expedited-identification-of-tp53-mutant-mds-and-aml
link anchor text: OncLive with Dr. Patel and Dr. Gerber: p53 Immunohistochemistry

Development of a focused oligonucleotide-array comparative genomic hybridization chip for clinical diagnosis of genomic imbalance.
PubMed Identifier: 17901113
author list: Shen Y, Irons M, Miller DT, Cheung SW, Lip V, Sheng X, Tomaszewicz K, Shao H, Fang H, Tang HS, Irons M, Walsh CA, Platt O, Gusella JF, Wu BL
published in: Clinical chemistry
information resource reference: Shen Y, Irons M, Miller DT, Cheung SW, Lip V, Sheng X, Tomaszewicz K, Shao H, Fang H, Tang HS, Irons M, Walsh CA, Platt O, Gusella JF, Wu BL. Development of a focused oligonucleotide-array comparative genomic hybridization chip for clinical diagnosis of genomic imbalance. Clin Chem. 2007 Dec; 53(12):2051-9.
journal title abbreviation: Clin Chem
publication date: 2007-09-27T00:00:00
year: 2007
type: Academic Article
type: Article
type: Document
type: Information Resource

https://profiles.umassmed.edu/profile/89429665
publication date: 2025
type: URLLink
label: https://www.onclive.com/view/dr-patel-on-the-p53-ihc-positivity-as-potential-surrogate-for-multi-hit-tp53-mutations-in-mds-and-aml
link anchor text: Early Identification of TP53-Mutant MDS and AML Using p53 Immunostaining

https://profiles.umassmed.edu/profile/89429727
publication date: 2023
type: URLLink
label: https://journals.lww.com/oncology-times/blog/onlinefirst/pages/post.aspx
link anchor text: Point-of-Care p53 IHC Unveils TP53-Mutant MDS/AML

https://profiles.umassmed.edu/profile/89429786
publication date: 2025
type: URLLink
label: https://trial.medpath.com/news/61960d9f316e3daa/ihc-testing-enables-rapid-tp53-mutation-detection-in
link anchor text: IHC Enables Rapid Identification of TP53-Mutant MDS/AML

https://profiles.umassmed.edu/profile/90441
author list: Kamionek M, Welch M, Tomaszewicz K, Hutchinson L, Cosar EF, Dresser K and Fraire AE.
information resource reference: Kamionek M, Welch M, Tomaszewicz K, Hutchinson L, Cosar EF, Dresser K and Fraire AE. . .BRAF Mutation Analysis in Pulmonary Langerhans Cell Histiocytosis. 2011. Minisymposium presentation & Abstract at the United States and Canadian Academy of Pathology Annual Meeting, Vancouver BC (01/14/12).
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: .BRAF Mutation Analysis in Pulmonary Langerhans Cell Histiocytosis. 2011. Minisymposium presentation & Abstract at the United States and Canadian Academy of Pathology Annual Meeting, Vancouver BC (01/14/12)

https://profiles.umassmed.edu/profile/94878
author list: McEnery-Stonelake M, Deng A, Tomaszewicz K, Welch M, Hutchinson L.
information resource reference: McEnery-Stonelake M, Deng A, Tomaszewicz K, Welch M, Hutchinson L. . Diagnosis of Melanocytic Lesions Using Molecular Techniques. 2010 MA American College of Physicians Annual Scientific Meeting, Waltham MA and 8th Annual AMA Medical Student Section and Resident and Fellow Section Research Symposium, San Diego CA.
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: Diagnosis of Melanocytic Lesions Using Molecular Techniques. 2010 MA American College of Physicians Annual Scientific Meeting, Waltham MA and 8th Annual AMA Medical Student Section and Resident and Fellow Section Research Symposium, San Diego CA

https://profiles.umassmed.edu/profile/94887
author list: Parnian Ahmadi Moghaddam MD , Keith Tomaszewicz BS, Lloyd Hutchinson Ph.d, April Deng MD, Karen Dresser BS.
information resource reference: Parnian Ahmadi Moghaddam MD , Keith Tomaszewicz BS, Lloyd Hutchinson Ph.d, April Deng MD, Karen Dresser BS. . Abstract # 292356, oral presentation; Kit Mutation in Vulvar malignant melanoma correlates with intense uniform cd117 immunohistochemical staining? 50th Annual meeting of the American Society of Dermatopathology, 10/11/2013.
publication date: 1900-01-01T00:00:00
year: 1900
type: Academic Article
type: Article
type: Document
type: Information Resource
label: Abstract # 292356, oral presentation; Kit Mutation in Vulvar malignant melanoma correlates with intense uniform cd117 immunohistochemical staining? 50th Annual meeting of the American Society of Dermatopathology, 10/11/2013

https://profiles.umassmed.edu/profile/95558627
publication date: 2025
type: URLLink
label: https://ashpublications.org/ashclinicalnews/news/8743/p53-IHC-Testing-May-Be-Reliable-Surrogate-for
link anchor text: ASH Clinical News: p53 Immunohistochemistry for TP53-Mutant MDS/AML

Is it a primary or metastatic melanocytic neoplasm of the central nervous system?: A molecular based approach.
PubMed Identifier: 24274719
author list: Cornejo KM, Hutchinson L, Cosar EF, Smith T, Tomaszewicz K, Dresser K, Deng A
published in: Pathology international
information resource reference: Cornejo KM, Hutchinson L, Cosar EF, Smith T, Tomaszewicz K, Dresser K, Deng A. Is it a primary or metastatic melanocytic neoplasm of the central nervous system?: A molecular based approach. Pathol Int. 2013 Nov; 63(11):559-64.
journal title abbreviation: Pathol Int
publication date: 2013-11-01T00:00:00
year: 2013
type: Academic Article
type: Article
type: Document
type: Information Resource

https://profiles.umassmed.edu/profile/99769701
publication date: 2025
type: URLLink
label: https://journals.lww.com/oncology-times/fulltext/2025/11000/immunostaining_offers_shortcut_to_detect_high_risk.20.aspx
link anchor text: p53 Immunostain in TP53-Mutant MDS and AML