Cap polyposis
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Cap polyposis, also inflammatory cap polyposis, is a very rare gastrointestinal pathology.
| Cap polyposis | |
|---|---|
| Diagnosis in short | |
|
| |
| LM | polypoid lesions with caps of granulation tissue |
| LM DDx | pseudomembranous colitis, inflammatory bowel disease |
| Gross | polypoid lesions |
| Site | colon, rectum |
|
| |
| Associated Dx | colitis cystica profunda |
| Clinical history | rectal bleeding |
| Endoscopy | polypoid lesions |
| Prognosis | benign |
| Clin. DDx | malignancy, inflammatory bowel disease, other causes of rectal bleeding |
General
- Extremely rare.
- Benign.[1]
- May mimic malignancy.
- Association with colitis cystica profunda.[2]
Clinical - children:
- Rectal bleeding.[3]
Gross
- Abundant polypoid lesions.
- Erosions.
Microscopic
Features:[1]
- Polypoid lesions with tips or caps of granulation tissue.
DDx:
- Pseudomembranous colitis.
- Inflammatory bowel disease (Crohn's disease).[4]
Images:
See also
References
- ↑ 1.0 1.1 1.2 Mason, M.; Faizi, SA.; Fischer, E.; Rajput, A. (2013). "Inflammatory cap polyposis in a 42-year-old male.". Int J Surg Case Rep 4 (3): 351-3. doi:10.1016/j.ijscr.2012.12.014. PMID 23416507.
- ↑ Arana, R.; Fléjou, JF.; Parc, Y.; El-Murr, N.; Cosnes, J.; Svrcek, M. (Sep 2013). "Cap polyposis and colitis cystica profunda: a rare association.". Histopathology. doi:10.1111/his.12292. PMID 24118052.
- ↑ 3.0 3.1 Li, JH.; Leong, MY.; Phua, KB.; Low, Y.; Kader, A.; Logarajah, V.; Ong, LY.; Chua, JH. et al. (Jul 2013). "Cap polyposis: a rare cause of rectal bleeding in children.". World J Gastroenterol 19 (26): 4185-91. doi:10.3748/wjg.v19.i26.4185. PMID 23864782.
- ↑ Kini, GP.; Murray, I.; Champion-Young, J.; Lau, M.; Katta, V.; Thorn, M.; Schultz, MP. (Apr 2013). "Cap polyposis mistaken for Crohn's disease: case report and review of literature.". J Crohns Colitis 7 (3): e108-11. doi:10.1016/j.crohns.2012.06.005. PMID 22766527.