期刊
ANNALS OF DIAGNOSTIC PATHOLOGY
卷 16, 期 6, 页码 441-446出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.anndiagpath.2012.03.004
关键词
Non-Hodgkin lymphoma; Kaposi sarcoma-associated herpesvirus (HHV8); HIV; Primary effusion lymphoma; Plasmablastic lymphoma; Anaplastic large cell lymphoma
类别
资金
- Department of Pathology, Seoul Veterans Hospital, Seoul, Republic of Korea
Primary effusion lymphoma (PEL) is a distinct clinicopathologic entity associated with human herpesvirus 8 (HHV8) infection that mostly affects patients with immunodeficiency. Primary effusion lymphoma usually presents as a malignant effusion involving the pleural, peritoneal, and/or pericardial cavities without a tumor mass. Rare cases of HHV8-positive lymphoma with features similar to PEL can present as tumor masses in the absence of cavity effusions and are considered to represent an extracavitary or solid variant of PEL. Here, we report 3 cases of extracavitary PEL arising in human immunodeficiency virus-infected men. Two patients had lymphadenopathy and underwent lymph node biopsy. One patient had a mass involving the ileum and ascending colon. In lymph nodes, the tumor was predominantly sinusoidal. The tumor involving the ileum and ascending colon presented as 2 masses, 12.5 x 10.6 x 2.6 cm in the colon and 3.6 x 2.7 x 1.9 cm in the ileum. In each case, the neoplasms were composed of large anaplastic cells, and 2 cases had hallmark cells. Immunohistochemistry showed that all cases were positive for HHV8 and CD138. One case also expressed CD4 and CD30, and 1 case was positive for Epstein-Barr virus encoded RNA. Evidence of B-cell differentiation was poorly developed in all tumors. These cases highlight the importance of assessing HHV8 in an anaplastic tumor that arises in a human immunodeficiency virus-positive patient and further contributes to the limited literature currently available for extracavitary PEL. (C) 2012 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据