Stomach
Polyps
Gastritis cystica polyposa
Author: Elliot Weisenberg, M.D.
Last author update: 1 August 2012
Last staff update: 28 December 2020
Copyright: 2003-2023, PathologyOutlines.com, Inc.
PubMed Search: gastritis cystica polyposa
Table of Contents
Definition / general | Gross description | Microscopic (histologic) description | Microscopic (histologic) images | Differential diagnosisCite this page: Weisenberg E. Gastritis cystica polyposa. PathologyOutlines.com website. https://www.pathologyoutlines.com/topic/stomachgastritiscyst.html. Accessed September 28th, 2023.
Definition / general
- Hyperplastic polyp containing foveolar or glandular epithelium in submucosa or muscularis propria
- Also called polypoid mucosal prolapse
Gross description
- Usually on gastric side of gastroenterostomy stomas
- Large sessile polyp grossly resembling hyperplastic polyp
Microscopic (histologic) description
- Resembles gastric hyperplastic polyp and reflux gastritis with pit hyperplasia, distortion, dilation
- May contain submucosal cysts surrounded by disorganized smooth muscle
- Increased mixed inflammatory cells in lamina propria
Microscopic (histologic) images
Image hosted on other server:
Elongated, tortuous
foveolae and hyperplastic
and cystically dilated
underlying pyloric gland
Differential diagnosis
- Well differentiated adenocarcinoma: desmoplasia, atypical mitoses; absence of lamina propria surrounding glands points to malignancy
