Journal List > Korean J Gastroenterol > v.58(5) > 1006878

Song, Jhun, Park, Kim, Chang, Kim, Kim, and Kim: A Case of Cap Polyposis Complicated with Idiopathic Retroperitoneal Fibrosis

Abstract

An optimal treatment for cap polyposis has not been established. Several treatment approaches, including anti-inflammatory agents, antibiotics, immunomodulators, and endoscopic therapy have been described. Surgical resection of the affected colon and rectum may be indicated for patients with persistent disease. Repeat surgery is indicated in cases of recurrence after surgery. However, symptomatic polyposis may still recur, and spontaneous resolution of cap polyposis is possible. We report a case of recurrent cap polyposis complicated with retroperitoneal fibrosis after inadequate low anterior resection with a positive resection margin. Surgical approaches for the treatment of cap polyposis should be carefully considered before treatment.

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Fig. 1.
Abdominopelvic CT finding. (A) It showed soft tissue infiltrations (arrow) surrounding the presacral space. (B) Associated hydronephroureterosis was noted.
kjg-58-275f1.tif
Fig. 2.
Colonoscopic image. Sessile polyps with caps of purulent exudates were observed.
kjg-58-275f2.tif
Fig. 3.
Pathologic finding of colonoscopic biopy. It showed the surface of polyps covered by exudates (H&E, ×100).
kjg-58-275f3.tif
Fig. 4.
Pathologic findings of retroperitoneal biopsy. (A) It showed fibroblast and lymphocyte infiltration in fibrosis (H&E, ×100). (B) Numerous blood vessels and peripheral nerves were observed due to secondary post- inflammatory change (H&E, ×100).
kjg-58-275f4.tif
Fig. 5.
Follow-up endoscopic images. It showed resolved cap polyposis.
kjg-58-275f5.tif
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