T-cell Lymphoma Mimicking Granulocytic Sarcoma

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Abstract
A case of diffuse large cell lymphoma is described in which eosinophils and eosinophilic myelocytes were admixed with the neoplastic lymphoid cells. Because of the eosinophilic myelocytes, a diagnosis of granulocytic sarcoma was initially considered. No abnormalities of peripheral blood or bone marrow were found. Immunohistochemical studies of lymph node tissue demonstrated membrane antigens consistent with a lymphoma of helper T-cells. Small lymphoid cells with markedly irregular nuclei were present but rather inconspicuous among the larger lymphoid cells. Although a clinical remission was attained, the patient had a relapse with central nervous system involvement.

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