Primary cutaneous Langerhans cell sarcoma without Birbeck granules: indeterminate cell sarcoma?
Deng A, Lee W, Pfau R, Harrington A, DiGiovani J, Prickett KA, Dare DM, Petrali JP. Primary cutaneous Langerhans cell sarcoma without Birbeck granules: indeterminate cell sarcoma? J Cutan Pathol. 2008 Sep; 35(9):849-54.