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KMID : 1100820130030020104
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Laboratory Medicine Online
2013 Volume.3 No. 2 p.104 ~ p.109
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A Case of Hepatosplenic T-cell Lymphoma Diagnosed by Bone Marrow Examination
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So Hee-Jin
Lee Jin-Kyung
Hong Young-Joon
Hong Seok-Il
Kang Hye-Jin
Lee Seung-Sook
Chang Yoon-Hwan
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Abstract
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Hepatosplenic T-cell lymphoma (HSTL) is a condition in which lymphoma cells infiltrate the sinusoids of the liver, spleen, and bone marrow, without lymph node involvement. We encountered a case of hepatosplenic T-cell lymphoma in a Vietnamese woman. The patient was hospitalized with epigastric pain and nausea. Splenomegaly and multiple poorly defined, low-attenuating nodular lesions in the liver were visualized on computed tomography (CT), and thrombocytopenia was noted. The lymph nodes were not significantly enlarged. Splenic biopsy could not be performed because of severe thrombocytopenia. Neoplastic lymphoid cells were present in bone marrow aspirates. Bone marrow sections revealed infiltration of CD3(+) and CD20(-) neoplastic lymphoid cells in the sinusoids. A clonality assay (IdentiClone T-Cell Receptor Delta Gene Clonality Assay; Invivoscribe Technologies, USA) showed gene rearrangements in the T-cell receptor delta gene. Thus, we made a confirmatory diagnosis of HSTL. When splenic biopsy is not available, bone marrow aspirates and clonality assessment may become useful diagnostic tools.
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KEYWORD
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Hepatosplenic T-cell lymphoma, bone marrow examination, TCR gene rearrangement
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