Inflammatory Cap Polyposis of the Rectum: A Rare Entity in an 11-year-old Male Child

A rare case and cause of bleeding PR with prolapse in a 11-year-old boy [Figure 1]. Colonoscopy showed rectum to be studded with multiple polyps with normal intervening mucosa. Resection with endorectal pull-through was done and is symptom-free after 2 years. Histopathological examination (HPE) was reported as inflammatory cap polyposis [Figure 2]. Inflammatory cap polyposis is a rare nonmalignant condition with poorly understood pathogenesis.[1]

Figure 1.

Clinical picture revealing multiple prolapsed rectal polyps covered by inflammatory exudate

Figure 2.

(a and b) Wall of the colon with multiple polyps covered by the inflammatory cap. Base of the polyps shows dilated crypts with luminal serrations (H and E × 40). (c) Low power view of inflammatory cap consisting of granulation tissue covered with inflammatory exudate (H and E × 100). (d) Lower power view of the inflammatory cap showing hemosiderin-laden macrophages and bleeding

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