Endoscopic Findings in Amyloidosis of the Small Intestine Koichi Kurahara 1 , Yumi Oshiro 2 , Yasuharu Okamoto 3 , Keisuke Kawasaki 1 , Syuji Kochi 1 , Hiroki Yaita 1 , Ema Washio 3 , Yutaka Nagata 3 , Minako Hirahashi 4 , Motohiro Esaki 3 , Yoshinao Oda 4 , Takayuki Matsumoto 3,5 , Tadahiko Fuchigami 1 1Division of Gastroenterology, Matsuyama Red Cross Hospital, Matsuyama, Japan 2Department of Pathology, Matsuyama Red Cross Hospital, Matsuyama, Japan 3Departments of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan 4Departments of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan 5Division of Gastroenterology, Departments of Internal Medicine, School of Medicine, Iwate Medical University, Morioka, Japan Keyword: アミロイドーシス , 消化管 , 小腸 , ダブルバルーン小腸内視鏡 , カプセル小腸内視鏡 pp.311-319
Published Date 2014/3/25
DOI https://doi.org/10.11477/mf.1403114092
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 To determine the endoscopic findings of amyloidosis of the small intestine, we reviewed 14 subjects with enteroscopically verified lesions. In 11 cases of AA amyloidosis, a mucosal pattern with innumerable fine granular elevations was evident, which correlated with expansion of the amyloid deposits in the lamina propria. In two patients with AL amyloidosis, there were polypoid protrusions and invariable thickening of the folds, which reflected massive amyloid deposits in the muscularis mucosa, submucosa, and muscularis propria. Three of five chronic NSAID users with AA amyloidosis had multiple mucosal defects in the ileum.

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