Myeloid Sarcoma is a rare extramedullary tumor, consisting of primitive granulocytic precursor cells. We report the case of a 50-year-old man, who presented with a renal mass. After nephrectomy, histological examination revealed a myeloid sarcoma in association with a renal cell carcinoma. Seven weeks after nephrectomy the patient developed acute myeloid leukemia.

There is limited literature documenting granulocytic sarcoma of the colon. We report a case of a 28 year-old female with a colonic granulocystic sarcoma of the colon as a complication of AML, as it is an important consideration with surgical management of typhilitis.

Kaya et al.’s [1] case report entitled “Granulocytic sarcoma after stem-cell transplantation in a child with biphenotypic leukemia” gives me an opportunity to remind physicians that short-course megadose methylprednisolone (MDMP; daily, 30 mg/kg for 3 days then 20 mg/kg for 4 days) has been effectively used in the treatment of granulocytic sarcoma (GS) [2-4]. With this treatment, extramedullary...