Figen Barut, Nilufer Onak Kandemir, Banu Dogan Gun, Sukru Oguz Ozdamar.
T-cell/histiocyte-rich large B-cell lymphoma of stomach.
J Pak Med Assoc Jan ;66(7):905-7.

T-cell/histiocyte-rich large B-cell lymphoma is an unusually encountered lymphoid neoplasm of stomach with aggressive course, and is an uncommon morphologic variant of diffuse large B-cell lymphoma. An ulceratedmass, 7x5x1 cm in size was observed within the gastrectomy specimen of a 76-year-old female patient. In cross sections, besidesmature lymphoid cells displaying T-cell phenotype, a neoplastic formation composed of large, pleomorphic atypical lymphoid cells with, prominent nucleoli, vesicular nuclei and abundant eosinophilic cytoplasm displaying Bcell phenotype were observed. Meanwhile, histiocyte-like mononuclear cells and Reed-Sternberg-like multinuclear cells expressing CD68 and Mac387 were also observed. The diagnosis of the case was T cell/histiocyte-rich large B-cell lymphoma. This rarely encountered neoplasmshould be kept inmind in the differential diagnosis of primary gastric lymphomas.

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