Difference between revisions of "Colorectal xanthomatous polyp"
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==Gross== | ==Gross== | ||
* | *Usually red colour.<ref name=pmid14961968/> | ||
**Classically described as ''yellow''.<ref name=pmid12009096/><ref name=pmid14961968/> | |||
==Microscopic== | ==Microscopic== | ||
Revision as of 13:34, 20 March 2014
The colorectal xanthomatous polyp, also colorectal xanthoma, is a rare benign intestinal polyp.
Rectal xanthoma, colonic xanthoma, rectal xanthelasma and colonic xanthelasma redirect here.
General
Gross
Microscopic
Features:
- Abundant foamy histiocytes in the superficial lamina propria.
- +/-Superficial serrations (hyperplastic features).
- Seen in ~80% of cases.[2]
DDx:
IHC
- CD68 +ve (foamy histiocytes).[1]
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POLYP, SIGMOID COLON, POLYPECTOMY: - XANTHOMATOUS POLYP WITH HYPERPLASTIC FEATURES. - NEGATIVE FOR DYSPLASIA. COMMENT: Xanthomatous polyps may be seen in the context of hyperlipidemia.
See also
References
- ↑ 1.0 1.1 1.2 Miliauskas, JR. (Apr 2002). "Rectosigmoid (colonic) xanthoma: a report of four cases and review of the literature.". Pathology 34 (2): 144-7. PMID 12009096.
- ↑ 2.0 2.1 2.2 2.3 Nakasono, M.; Hirokawa, M.; Muguruma, N.; Okahisa, T.; Okamura, S.; Ito, S.; Miyamoto, H.; Wada, S. et al. (Jan 2004). "Colorectal xanthomas with polypoid lesion: report of 25 cases.". APMIS 112 (1): 3-10. PMID 14961968.