Home   Chapter Home   Jobs   Conferences   Fellowships   Books

Advertisement

Colon tumor

Polyps

Juvenile (retention) polyp

Reviewers: Jela Bandovic, M.D. (see Reviewers page)
Revised: 23 May 2012, last major update May 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.

General
=========================================================================

● Most common childhood polyp
● Usually children < 5 years, may occur in adults
● 80% in rectum
● Commonly presents with rectal bleeding (Gastroenterol Jpn 1979;14:425); polyps may autoamputate (10%) due to torsion
● Usually sporadic; rarely associated with juvenile polyposis syndrome
● Not neoplastic by itself, but may be associated with dysplasia (Arch Pathol Lab Med 1996;120:1032)

Case reports
=========================================================================

● 10 month old boy with intussusception (Postgrad Med 1978;64:188)
● 11 year old boy with esophageal colon interposition (J Pediatr Surg 1998;33:1418)
● With intramucosal carcinoma (Arch Pathol Lab Med 1987;111:200)

Gross description
=========================================================================

● Hamartomatous, large (1-3 cm) lesions with long (1-2 cm) stalks, red granular or glistening surface; may see cystic cavities

Gross images
=========================================================================

Prolapsing through rectum


Multiple polyps

Micro description
=========================================================================

● Granulation tissue and ulcer covering abundant cystically dilated glands filled with mucus in an edematous and inflamed stroma
● 20% have hyperplastic changes
● Minimal epithelium or smooth muscle; no atypia
● Rarely osseous metaplasia, foreign-body giant cell reaction to ruptured glands

Micro images
=========================================================================

Cystically dilated glands and inflammation #1, #2, #3, #4

Virtual slides
=========================================================================

Juvenile polyp

Differential diagnosis
=========================================================================

● Inflammatory polyp

End of Colon tumor > Polyps > Juvenile (retention) polyp

This information is intended for physicians and related personnel, who understand that medical information is often imperfect, and must be interpreted in the context of a patient's clinical data using reasonable medical judgment. This website should not be used as a substitute for the advice of a licensed physician.

All information on this website is protected by copyright of PathologyOutlines.com, Inc. Information from third parties may also be protected by copyright. Please contact us at copyrightPathOut@gmail.com with any questions (click here for other contact information).