Colon non tumor
Colitis (non-infectious)
Rectal tonsil

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 27 December 2016, last major update May 2013

Copyright: (c) 2003-2016, PathologyOutlines.com, Inc.

PubMed Search: Rectal tonsil

Related topics: Lymphoid follicular proctitis
Page views in 2018: 361
Page views in 2019 to date: 150
Cite this page: Rectal tonsil. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colonrectaltonsil.html. Accessed May 22nd, 2019.
Definition / general
Epidemiology
  • Usually middle aged adults
Clinical features
  • Either presents with rectal bleeding or abdominal pain, or detected at screening endoscopy as raised, polypoid nodule or mass
  • Benign; does not recur or progress to lymphoma, although may clinically resemble lymphoma
Microscopic (histologic) description
  • Dense lymphoid infiltrate and follicular hyperplasia of mucosa with congestion; no ulceration; no neutrophils
Case reports
  • 51 and 71 year old Japanese women with localized lymphoid hyperplasia of the rectum (APMIS 2007;115:1432)
Microscopic (histologic) description
  • Benign lymphoid proliferation involving lamina propria or submucosa
  • Lymphoid follicles, cryptitis and mild architectural distortion
  • May have intraepithelial lymphocytes and nondestructive lymphoepithelial lesions
  • No crypt obliteration, no crypt abscesses
Back to top