Difference between revisions of "Anus"

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==Anal cancer==
==Anal cancer==
*Usually ''[[squamous cell carcinoma]]''.
*[[Squamous cell carcinoma]] - most common.
*[[Malignant melanoma]].
*[[Adenocarcinoma]] from the [[rectum]].


==Hidradenoma papilliferum==
==Hidradenoma papilliferum==

Revision as of 21:51, 8 January 2012

The anus occasionally shows-up on the pathologists desk. It sometimes comes with the rectum and colon, as an abdominoperoneal resection (APR).

Anal neoplasia

Immunosuppressed individuals and homosexuals have a higher risk of anal intraepithelial neoplasia (AIN) and anal cancer.[1][2]

Anal intraepithelial neoplasia

General

  • Precursor lesion of anal cancer.
  • Usually HPV associated.

Grading

AIN is graded much like cervical intraepithelial neoplasia:

  • High-grade anal intraepithelial neoplasia (HGAIN).
  • Low-grade anal intraepithelial neoplasia (LGAIN).

Anal cancer

Hidradenoma papilliferum

See Hidradenoma papilliferum.

See also

References

  1. Park IU, Palefsky JM (March 2010). "Evaluation and Management of Anal Intraepithelial Neoplasia in HIV-Negative and HIV-Positive Men Who Have Sex with Men". Curr Infect Dis Rep 12 (2): 126–133. doi:10.1007/s11908-010-0090-7. PMC 2860554. PMID 20461117. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2860554/.
  2. Czoski-Murray C, Karnon J, Jones R, Smith K, Kinghorn G (November 2010). "Cost-effectiveness of screening high-risk HIV-positive men who have sex with men (MSM) and HIV-positive women for anal cancer". Health Technol Assess 14 (53): 1–131. doi:10.3310/hta14530. PMID 21083999.