这个词是什么意思？
A rare neoplasm of large B-cells usually presenting as serious effusions without detectable tumor masses. The most common sites of involvement are the pleural, pericardial, and peritoneal cavities. It is associated with HUMAN HERPESVIRUS 8, most often occurring in the setting of immunodeficiency.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D054685 · MeSH 2026。
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