Difference between revisions of "Anal squamous cell carcinoma"

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==General==
==General==
*Most common form of anal cancer.
*Most common form of anal cancer.
*Associated with [[HPV]] infection.<ref name=pmid23616200>{{Cite journal  | last1 = Cornall | first1 = AM. | last2 = Roberts | first2 = JM. | last3 = Garland | first3 = SM. | last4 = Hillman | first4 = RJ. | last5 = Grulich | first5 = AE. | last6 = Tabrizi | first6 = SN. | title = Anal and perianal squamous carcinomas and high-grade intraepithelial lesions exclusively associated with "low-risk" HPV genotypes 6 and 11. | journal = Int J Cancer | volume = 133 | issue = 9 | pages = 2253-8 | month = Nov | year = 2013 | doi = 10.1002/ijc.28228 | PMID = 23616200 }}</ref>


Risk factors:<ref name=pmid23806153>{{Cite journal  | last1 = Kutlubay | first1 = Z. | last2 = Engin | first2 = B. | last3 = Zara | first3 = T. | last4 = Tüzün | first4 = Y. | title = Anogenital malignancies and premalignancies: Facts and controversies. | journal = Clin Dermatol | volume = 31 | issue = 4 | pages = 362-73 | month =  | year =  | doi = 10.1016/j.clindermatol.2013.01.003 | PMID = 23806153 }}</ref>
Risk factors:<ref name=pmid23806153>{{Cite journal  | last1 = Kutlubay | first1 = Z. | last2 = Engin | first2 = B. | last3 = Zara | first3 = T. | last4 = Tüzün | first4 = Y. | title = Anogenital malignancies and premalignancies: Facts and controversies. | journal = Clin Dermatol | volume = 31 | issue = 4 | pages = 362-73 | month =  | year =  | doi = 10.1016/j.clindermatol.2013.01.003 | PMID = 23806153 }}</ref>
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*Immunosuppressed.
*Immunosuppressed.
*[[HIV]] infection.
*[[HIV]] infection.
==Microscopic==
==Microscopic==
Features:
Features:

Revision as of 17:58, 19 March 2015

Anal squamous cell carcinoma is a type of anal cancer.

It is also known as anal squamous carcinoma and squamous cell carcinoma of the anus.

General

  • Most common form of anal cancer.
  • Associated with HPV infection.[1]

Risk factors:[2]

  • Men who have sex with men.
  • Immunosuppressed.
  • HIV infection.

Microscopic

Features:

DDx:

IHC

  • p16 +ve.[3]
  • CDX2 -ve/+ve.

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RECTUM, DISTAL, BIOPSY:
- INVASIVE SQUAMOUS CELL CARCINOMA.

See also

References

  1. Cornall, AM.; Roberts, JM.; Garland, SM.; Hillman, RJ.; Grulich, AE.; Tabrizi, SN. (Nov 2013). "Anal and perianal squamous carcinomas and high-grade intraepithelial lesions exclusively associated with "low-risk" HPV genotypes 6 and 11.". Int J Cancer 133 (9): 2253-8. doi:10.1002/ijc.28228. PMID 23616200.
  2. Kutlubay, Z.; Engin, B.; Zara, T.; Tüzün, Y.. "Anogenital malignancies and premalignancies: Facts and controversies.". Clin Dermatol 31 (4): 362-73. doi:10.1016/j.clindermatol.2013.01.003. PMID 23806153.
  3. 3.0 3.1 Gunia, S.; Koch, S.; May, M. (Feb 2013). "Is CDX2 immunostaining useful for delineating anorectal from penile/vulvar squamous cancer in the setting of squamous cell carcinoma with clinically unknown primary site presenting with histologically confirmed inguinal lymph node metastasis?". J Clin Pathol 66 (2): 109-12. doi:10.1136/jclinpath-2012-201138. PMID 23105122.