著者

中村 誠司 篠原 正徳 原田 猛 廣木 朗子 岡 増一郎

出版者

Japanese Society of Oral and Maxillofacial Surgeons

雑誌

日本口腔外科学会雑誌 (ISSN:00215163)

巻号頁・発行日

vol.41, no.1, pp.62-69, 1995-01-20 (Released:2011-07-25)

参考文献数

25

被引用文献数

2 1

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Sixty dentigerous and 10 primordial cysts were examined clinically and pathologically. Fifty-six of the dentigerous cysts had non-keratinizing epithelium and 9 of the dentigerous cysts had keratinizing epithelium. However, 5 keratinizing dentigerous cysts and 1 non-keratinizing primordial cyst were observed as exceptions.Radiographically, the dentigerous cysts were generally of unilocular round shape with a well-defined border. However, the well-defined border was often lost due to severe infection. In contrast, the primordial cysts were more frequently shown to be of irregular and multilocular shape, and the well-defined border was well preserved even with severe infection. Thus, keratinizing epithelium was suggested to be involved in the formation of irregular and multilocular shape and to be more resistant to infection.Pathologically, non-keratinizing epithelium often showed proliferation, a lacy appearance, and ridge elongation in association with inflammatory cell infiltration. In contrast, such changes in keratinizing epithelium were rarely observed even with heavy inflammation. Interestingly, ameloblastoma-like epithelial proliferation and calcification in the absence of inflammation were partially observed in 6 and 7 cases, respectively, independent of keratinization of epithelium. Thus, odontogenic epithelial cells were suggested to have high proliferative and differentiative activities.

著者

角谷 慎一 徳楽 正人 原田 猛 古川 幸夫 牛島 聡 中泉 治雄

出版者

一般社団法人日本消化器外科学会

雑誌

日本消化器外科学会雑誌 (ISSN:03869768)

巻号頁・発行日

vol.36, no.11, pp.1593-1597, 2003-11-01

参考文献数

9

被引用文献数

3

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悪性線維性組織球腫は成人の四肢軟部組織に好発する非上皮性悪性腫瘍であり,腸間膜に原発することはまれである.今回,腸間膜原発の悪性腺維性組織球腫の1例を経験したので報告する.症例は71歳の女性.右下腹部腫瘤を主訴に,婦人科受診し,腹部MRI検査にて右下腹部から骨盤腔にかけて嚢胞性腫瘍を認めた.右卵巣腫瘍と診断され,開腹術を施行されたが,卵巣には異常を認めず,腫瘍は回盲部から発生したものと考えられた.当科転科後,腹部CT検査,血管造影検査が行われた.血管造影検査では腫瘍を栄養する血管は回結腸動脈から分枝していた.回盲部の非上皮性腫瘍を疑い,再開腹し回盲部切除術を施行した.病理組織標本にて回腸の腸間膜原発の粘液型MFHと診断し,現在外来にて経過観察中であるが,再発は認めていない.