Acute myeloid leukemia presenting as granulocytic sarcoma of the lung

Granulocytic sarcoma of the scapula: an unusual presentation of acute myeloblastic leukemia

The unusual presentation of acute myeloblastic leukemia as a scapular granulocytic sarcoma in an infant without systemic manifestations is reported for the first time. Granulocytic sarcoma as a presentation of leukemia should be considered in the differential diagnosis of scapular masses during childhood. Surgery is limited to obtain sufficient tissue for histopathologic diagnosis.

Granulocytic sarcoma of the prostate as the first manifestation of a late relapse of acute myelogenous leukemia

We describe a 68-year-old patient who developed granulocytic sarcoma of the prostate 9 years after complete remission following successful treatment of acute myelogenous leukemia (FAB, M2). PCR analysis of bone marrow samples in first remission and at the time of relapse detected an AML1/ETO rearrangement typical for AMLs with t (8;21). The CD56 antigen was not expressed on the leukemic cells. Systemic chemotherapy led to a short-lasting regression of the tumor, but the patient subsequently developed overt bone marrow relapse and died during chemotherapy. While granulocytic sarcoma as a primary manifestation of AML is well known, as the first manifestation of relapse it appears to be very uncommon.