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Rev. bras. hematol. hemoter ; 30(5): 423-425, set.-out. 2008. ilus
Article in English | LILACS | ID: lil-512159

ABSTRACT

Granulocytic sarcoma (GS) is a rare extramedullary tumor mass composed of immature cells derived from the hematopoietic myeloid series. It is usually associated with leukemia and other myeloproliferative disorders but can also occur without overt hematologic diseases. The breast has been reported to be an uncommon site of presentation. We report a case of acute myeloid leukemia preceded by GS of the breast. The immunohistochemistry revealed myeloperoxidase, CD68 and CD43 positivity, thus indicating a diagnosis of GS. Conventional cytogenetic analysis of peripheral blood cells showed t(8;21)(q22;22). Complete remission was achieved with Daunorubicin and Cytarabine induction therapy followed by three courses of high-dose Cytarabine consolidation. The patient remains in continuous complete remission at 27 months.


Sarcoma granulocítico (GS) é um raro tumor extramedular composto de células imaturas derivadas das linhagens hematopoiéticasmielóides. É geralmente associada à leucemia ou outras desordens mieloproliferativas, mas também pode ocorrer sem manifestação de doenças hematológicas. A mama tem sido relatada como local incomum de apresentação. Relatamos um caso de leucemia mielóide aguda precedida por GS da mama. A imunohistoquímica revelou mieloperoxidase, CD68 e CD43 positivos, indicando um diagnóstico da GS. A análise citogenética convencional de células de sangue periférico mostrou t(8; 21)(q22; 22). Remissão completa foi atingida com indução terapêutica com daunorubicina e citarabina, seguida de três ciclos de alta dose de citarabina. O paciente permanece em completa remissão há 27 meses.


Subject(s)
Humans , Female , Adult , Breast , Precursor Cell Lymphoblastic Leukemia-Lymphoma , Sarcoma, Myeloid
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