Epithelioid sarcoma with diffuse bone marrow metastases and associated leukemoid reaction. A case report and brief literature review

A patient with a recurrent epithelioid sarcoma of the hand was observed for five years with a diagnosis of nodular fasciitis. Eventually, the patient had a pulmonary metastasis and diffuse bone marrow spread, which was associated with a leukemoid reaction. Bone marrow dissemination by sarcoma is unusual, and its production of a leukemoid reaction very rare; this is its first reported occurrence in epithelioid sarcoma that the authors have been able to identify in the literature.