Pedunculated angiodysplasia of the colon successfully treated with endoscopy: a new type of angiodysplasia

Pedunculated Angiodysplasia of the Colon Treated with Endoscopic Resection: A Case Report

“…In contrast, pedunculated angiodysplasia is generally covered by smooth, whitish mucosa, and in most cases, the apex of the heads is red and may have erosion, just as in our case (3). These findings are useful in making the correct diagnosis of pedunculated angiodysplasia.…”

“…At colonoscopy, typical angiodysplasia generally appears as a bright red, flat area with irregular borders. However, a new type of angiodysplasia, pedunculated angiodysplasia, with an appearance similar to that of pedunculated polyp, has been described in seven Japanese patients (2,3). No similar case has been reported outside Japan.…”

Polypoid angiodysplasia: an unusual cause of lower gastrointestinal bleeding

“…In the literature, lesions diagnosed as a polypoid angiodysplasia are extremely rare, and most of the cases have been reported as single polypoid lesion of the colon [3][4][5][6]. In contrast, the vascular lesions in our case were multiple polypoid, longer, highly vascular, octopus-like, and it was associated with diverticula.…”

“…After histologic diagnosis with angiodysplasia, the remaining polyps were removed with snare polypectomy followed by injection of adrenalin to prevent possible bleeding. In the literature, most cases that were reported were treated with snare polypectomy [3][4][5][6]. If polypoid angiodysplasia is small and pedunculated, lesions can be removed by snare polypectomy like our case.…”

“…Polypoid vascular lesions similar to that of pedinculated polyp in appearance are extremely rare in the colon, and all cases were reported from Eastern countries [3][4][5][6]. In case of polypoid angiodysplasia, polypoid arteriovenenous malformations (AVM) are also rarely reported [7,8].…”