Primary cutaneous non-Hodgkin's lymphoma, clinically mimicking a soft tissue sarcoma

Primary cutaneous B-cell lymphomas (PCBCL) are a heterogeneous group of neoplasms with distinct biology and clinical course when compared to their nodal counterparts. They usually present as violaceous, erythematous plaques, and nonulcerated nodules, which are confined to skin at the time of presentation. We present an unusual case of primary cutaneous diffuse large B-cell lymphoma, clinically mimicking a sarcoma. This case highlights the uncommon aggressive behavior and ulcerated type of nodular lesions seen in PCBCL and also revisits the cytomorphological findings of the same.