Ovarian granulocytic sarcoma as the primary manifestation of acute infantile myelomonocytic leukemia.

The first known instance of granulocytic sarcoma of the ovary as the presenting manifestation of acute nonlymphocytic leukemia in infancy is reported. The clinical and laboratory findings for a 3-month-old infant who had anemia and a lower abdominal mass subsequently found to represent bilateral ovarian granulocytic sarcomas are discussed. Results of light and electron microscopic examination of bone marrow biopsy specimen were consistent with a diagnosis of acute myelomonocytic leukemia. Hematopoietic (and lymphoproliferative) disorders must be included in the differential diagnosis of ovarian masses in children.