Solitary rectal cap polyp: Case report and review of the literature

Abstract

Rectal bleeding combined with the presence of a rectal mass has been traditionally associated with the presence of malignant disease. Cap polyposis is a relatively young and still undefined rare entity which mainly involves the rectosigmoid. It is characterized by the presence of inflammatory polyps. In this case report, we present a patient who was diagnosed with a solitary cap polyp of the rectum during the investigation of a bleeding rectal mass. The patient's age and the absence of family history were not in favor of malignancy, despite the strong initial clinical impression. After confirmation of the diagnosis, the patient underwent a snare excision and remains asymptomatic. Cap polyposis, although rare, should be suspected and, when diagnosed, should be treated according to location, number of polyps and severity of symptoms.

Cap polyposis and colitis cystica profunda: a rare association

“…Sir: Cap polyposis and colitis cystica profunda (CCP) are two rare, benign and distinct colorectal conditions whose aetiology remains unclear. A rare association between cap polyposis and CCP has already been described; in those cases, cystic glands were present in the submucosal layer of the cap polyps . Interestingly, in the present case, lesions of CCP were not intermingled with cap polyps, but were distant from them.…”

“…This entity is characterized by multiple inflammatory colonic polyps covered by a cap of granulation tissue; hence the name ‘cap polyposis’ . Its epidemiology has not been well investigated, and data have been obtained from occasional case series . It has been described in both men and women, aged 12–76 years.…”

Polypectomy for Recurrent Inflammatory Cap Polyposis Combined with Argon Plasma Coagulation

“… 3 Recto-sigmoid cap polyposis can lead to anemia from chronic blood loss, or to hypoalbuminemia from protein loss. 4 - 7 …”

Rectal cap polyposis masquerading as ulcerative colitis with pseudopolyposis and presenting as chronic anemia: A case study with review of literature

“…[5] The number of polyps may vary from 1 to more than 100. [6] Obusez et al .,[7] reported a case of a solitary cap polyp in the ileal pouch of a patient who had been treated by restorative procto-colectomy with ileal pouch-anal anastamosis.…”