Intest Res.
2012 Jul;10(3):295-299. 10.5217/ir.2012.10.3.295.
A Case of Mixed Hyperplastic-adenomatous Rectal Polyp with Composition of Invasive Adenocarcinoma
- Affiliations
-
- 1Department of Internal Medicine, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea. zep2000@hitel.net
- 2Department of Pathology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
- KMID: 1807263
- DOI: http://doi.org/10.5217/ir.2012.10.3.295
Abstract
- Epithelial colon polyps are largely divided into hyperplastic and adenomatous polyps. Adenomatous polyps are premalignant lesions, whereas hyperplastic polyps are regarded as benign lesions. However, this histological classification has been blurred, as cases of malignant changes in hyperplastic polyposis, mixed hyperplastic adenomatous polyps (MHAPs), and serrated adenomas in the colon have been reported. Rare cases of MHAP have been reported, and are mainly found at the proximal colon with a relatively large size. MHAPs seem to be an intermediate stage of the hyperplastic polyp-adenoma sequence or a collision tumor. Here, we report on a case of a single polyp in the rectum diagnosed with a MHAP combined with an invasive adenocarcinoma.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Two Cases of Adenocarcinoma Arising from Gastric Hyperplastic Polyp
- Two Cases of Hyperplastic Polyposis in the Colon
- A Case of Signet Ring Cell Carcinoma with Hyperplastic Polyp in the Remnant Stomach after Subtotal Gastrectomy
- Adenocarcinoma Occurring in a Gastric Hyperplastic Polyp Treated with Endoscopic Submucosal Dissection
- Histological Classification of Endoscopically Diagnosed Polypoid Lesion of Stomach
