recurrence of primary granulocytic sarcoma as an untreatable scrotal ulcer

primary myeloid sacrom (ms) is a rare tumor and even more rare in multiple organs with no evidence of bone marrow involvement. this report describes an unusual case of a 19-year-old male presenting scrotal ms with a history of subconjunctival ms, 5 months ago. bone marrow biopsies showed no evidence of acute leukemia. despite radiotherapy for first involvement and chemotherapy for second presentation, his condition deteriorated and he unfortunately died. this case is presented here to remind an unusual presentation of ms and to address that the pathologist should bear in mind the possibility of ms when making the differential diagnosis of unusual lymphoma or undifferentiated nonhematological tumors.