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Pathology of Idiopathic Mesenteric Phlebosclerosis Keisuke Ikeda 1 , Akinori Iwashita 1 , Seiji Haraoka 1 , Atsuko Ota 1 , Kaname Oshige 1 , Hiroshi Tanabe 1 , Nobuaki Nishimata 1 , Taku Nishimura 2 , Yasuhiro Takaki 2 , Toshiyuki Matsui 2 , Yuki Koga 3 1Department of Pathology, Fukuoka University Chikushi Hospital, Chikushino, Japan 2Department of Gastroenterology, Fukuoka University Chikushi Hospital, Chiushino, Japan 3Shinn-kokura Hospital, Kitakyushu, Japan Keyword: 特発性腸間膜静脈硬化症 , 病理組織学 , 大腸虚血性病変 , 石灰化 pp.138-152
Published Date 2009/2/25
DOI https://doi.org/10.11477/mf.1403101574
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 We investigated the clinical pathology in 17 cases of idiopathic mesenteric phlebosclerosis(IMP)at our hospital. All lesions were located mainly on the right side of the colon in the upper mesenteric vein area. Histopathological examinations revealed collagen fiber deposits around vessels in the deep mucosa in all cases, which were more severe in the cases treated with intestinal resection. Ten cases(58.8%)showed focal collagen fiber deposits in the superficial subepithelial tissue. Immunostaining studies demonstrated rich collagen type Ⅲ expression in the collagen fibers in the lamina propria mucosa layer. We concluded that collagen fiber deposits around vessels are a characteristic finding in the histopathology of IMP, and that detection of collagen type Ⅲ expression by immunostaining is a feasible diagnostic method. Moreover, the presence of deposits in the superficial subepithelial tissue is a new significant histological finding that will enable IMP to be distinguished from collagenous colitis.


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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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