日本臨床細胞学会雑誌
Online ISSN : 1882-7233
Print ISSN : 0387-1193
ISSN-L : 0387-1193
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関節液の吸引細胞診にて診断しえた膝関節色素性絨毛結節性滑膜炎の 1 例
吉田 桂子石田 光明籠谷 亜希子岩井 宗男岡部 英俊
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2013 年 52 巻 5 号 p. 478-479

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We report a case of pigmented villonodular synovitis (PVNS) of the knee diagnosed in a 69-year-old woman. The fine-needle aspiration smear of the joint fluid showed loose aggregates of mononuclear cells relatively rich in cytoplasm with bland nuclei containing a single nucleolus. Hemosiderin-containing cells and multinucleated cells were also observed. Histopathological study of the resected synovial tumor confirmed the diagnosis of PVNS.
The characteristic cytological features of PVNS are as follows : i) aggregates of bland mononuclear cells, and ii) presence of hemosiderin-containing mononuclear cells and multinucleated cells. Recognition of these features can facilitate the cytodiagnosis of PVNS.

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© 2013 公益社団法人 日本臨床細胞学会
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