Difference between revisions of "Classic vulvar intraepithelial neoplasia"
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{{ Infobox diagnosis | {{ Infobox diagnosis | ||
| Name = {{PAGENAME}} | | Name = {{PAGENAME}} | ||
| Image = | | Image = Vulvar_intraepithelial_neoplasia3_1.jpg | ||
| Width = | | Width = | ||
| Caption = | | Caption = Classic vulvar intraepithelial neoplasia. [[H&E stain]]. | ||
| Synonyms = | | Synonyms = | ||
| Micro = increased [[NC ratio]], multinucleation, lack of maturation to surface (not very useful -- unlike in the cervix), +/-non-basal mitoses, +/-atypical mitoses | | Micro = increased [[NC ratio]], multinucleation, lack of maturation to surface (not very useful -- unlike in the cervix), +/-non-basal mitoses, +/-atypical mitoses | ||
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===Images=== | ===Images=== | ||
<gallery> | |||
Image:Vulvar_intraepithelial_neoplasia3_1.jpg | VIN III. (WC) | |||
Image:Vulvar_intraepithelial_neoplasia3_2.jpg | VIN III. (WC) | |||
</gallery> | |||
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150314/figure/F3/ VIN I - koilocytes (nih.gov)].<ref name=pmid21702970/> | *[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150314/figure/F3/ VIN I - koilocytes (nih.gov)].<ref name=pmid21702970/> | ||
*[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150314/figure/F4/ VIN I (nih.gov)].<ref name=pmid21702970>{{Cite journal | last1 = Kotsopoulos | first1 = IC. | last2 = Tampakoudis | first2 = GP. | last3 = Evaggelinos | first3 = DG. | last4 = Nikolaidou | first4 = AI. | last5 = Fytili | first5 = PA. | last6 = Kartsiounis | first6 = VC. | last7 = Gerasimidou | first7 = DK. | title = Implication of human papillomavirus-66 in vulvar carcinoma: a case report. | journal = J Med Case Rep | volume = 5 | issue = | pages = 232 | month = | year = 2011 | doi = 10.1186/1752-1947-5-232 | PMID = 21702970 | PMC = 3150314 }}</ref> | *[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150314/figure/F4/ VIN I (nih.gov)].<ref name=pmid21702970>{{Cite journal | last1 = Kotsopoulos | first1 = IC. | last2 = Tampakoudis | first2 = GP. | last3 = Evaggelinos | first3 = DG. | last4 = Nikolaidou | first4 = AI. | last5 = Fytili | first5 = PA. | last6 = Kartsiounis | first6 = VC. | last7 = Gerasimidou | first7 = DK. | title = Implication of human papillomavirus-66 in vulvar carcinoma: a case report. | journal = J Med Case Rep | volume = 5 | issue = | pages = 232 | month = | year = 2011 | doi = 10.1186/1752-1947-5-232 | PMID = 21702970 | PMC = 3150314 }}</ref> | ||
*[http://www.flickr.com/photos/euthman/2658773592/ VIN III (flickr.com)]. | *[http://www.flickr.com/photos/euthman/2658773592/ VIN III (flickr.com)]. | ||
*[http://www.brown.edu/Courses/Digital_Path/systemic_path/female/warty_VIN.html VIN (brown.edu)]. | *[http://www.brown.edu/Courses/Digital_Path/systemic_path/female/warty_VIN.html VIN (brown.edu)]. | ||
Revision as of 02:23, 25 February 2014
| Classic vulvar intraepithelial neoplasia | |
|---|---|
| Diagnosis in short | |
 Classic vulvar intraepithelial neoplasia. H&E stain. | |
|
| |
| LM | increased NC ratio, multinucleation, lack of maturation to surface (not very useful -- unlike in the cervix), +/-non-basal mitoses, +/-atypical mitoses |
| LM DDx | vulvar squamous cell carcinoma, condyloma acuminatum, dermatomycosis |
| IHC | p16 +ve, p53 -ve, Ki-67 - suprabasal staining |
| Site | vulva |
|
| |
| Associated Dx | vulvar squamous cell carcinoma, other HPV lesions |
| Clinical history | young women |
| Prevalence | uncommon |
Classic vulvar intraepithelial neoplasia, abbreviated classic VIN, is a pre-neoplastic lesion of the vulva strongly associated with the human papilloma virus.
It is also known as usual vulvar intraepithelial neoplasia, abbreviated uVIN.[1] Despite being called "usual", it is less common than the other form of vulvar intraepithelial neoplasia (differentiated vulvar intraepithelial neoplasia).
General
Epidemiology:
- Classic VIN, like CIN, is associated with HPV and seen in younger women.
- May be multifocal, i.e. associated with cervical (CIN) or vaginal (VAIN) lesions;[2] multifocality has a strongly association with immunosuppression.[3]
Classic VIN is graded like cervical pre-cancerous lesions:
- VIN I.
- DDx: condyloma acuminatum.[4]
- Uncommon.
- VIN II.
- Not common.
- VIN III.
- Commonly seen.
Microscopic
Features:
- Increased NC ratio.
- Multinucleation.
- Lack of maturation to surface (not very useful -- unlike in the cervix).[5]
- May have "vertical streaming" - the long axis of the cells are perpendicular to the free surface & basement membrane.
- Apical mitoses.
DDx:
- Condyloma acuminatum.
- Vulvar squamous cell carcinoma, esp. warty type.
- Extramammary Paget disease.
- Dermatomycosis (fungal infection) - esp. candidiasis.
Images
VIN III. (WC)
VIN III. (WC)
IHC
- Classic VIN: p16 +ve, p53 -ve.
- Differentiated VIN: p16 -ve, p53 +ve.[7]
Note:
- p16 can be thought of as a poor man's HPV test.
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VIN I
VULVA, BIOPSY: - CLASSIC VULVAR INTRAEPITHELIAL NEOPLASIA (VIN) I (MILD DYSPLASIA). - NEGATIVE FOR INVASIVE MALIGNANCY.
VIN III
VULVA, EXCISION: - CLASSIC VULVAR INTRAEPITHELIAL NEOPLASIA (VIN) III (SEVERE DYSPLASIA) WITH FOCAL ULCERATION. - MARGIN FOCALLY POSITIVE FOR VIN III. - NEGATIVE FOR INVASIVE MALIGNANCY.
See also
References
- ↑ Reyes, MC.; Cooper, K. (Jan 2014). "An update on vulvar intraepithelial neoplasia: terminology and a practical approach to diagnosis.". J Clin Pathol. doi:10.1136/jclinpath-2013-202117. PMID 24399036.
- ↑ Pai, K.; Pai, S.; Gupta, A.; Rao, P.; Renjhen, P. (Oct 2006). "Synchronous vulvar intraepithelial neoplasia (VIN) of warty type and cervical intraepithelial neoplasia (CIN): case report.". Indian J Pathol Microbiol 49 (4): 585-7. PMID 17183865.
- ↑ Ait Menguellet, S.; Collinet, P.; Houfflin Debarge, V.; Nayama, M.; Vinatier, D.; Leroy, JL. (May 2007). "Management of multicentric lesions of the lower genital tract.". Eur J Obstet Gynecol Reprod Biol 132 (1): 116-20. doi:10.1016/j.ejogrb.2006.04.011. PMID 16713062.
- ↑ Rufforny, I.; Wilkinson, EJ.; Liu, C.; Zhu, H.; Buteral, M.; Massoll, NA. (Apr 2005). "Human papillomavirus infection and p16(INK4a) protein expression in vulvar intraepithelial neoplasia and invasive squamous cell carcinoma.". J Low Genit Tract Dis 9 (2): 108-13. PMID 15870532.
- ↑ LAE. February 2009.
- ↑ 6.0 6.1 Kotsopoulos, IC.; Tampakoudis, GP.; Evaggelinos, DG.; Nikolaidou, AI.; Fytili, PA.; Kartsiounis, VC.; Gerasimidou, DK. (2011). "Implication of human papillomavirus-66 in vulvar carcinoma: a case report.". J Med Case Rep 5: 232. doi:10.1186/1752-1947-5-232. PMC 3150314. PMID 21702970. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3150314/.
- ↑ Pinto, AP.; Miron, A.; Yassin, Y.; Monte, N.; Woo, TY.; Mehra, KK.; Medeiros, F.; Crum, CP. (Mar 2010). "Differentiated vulvar intraepithelial neoplasia contains Tp53 mutations and is genetically linked to vulvar squamous cell carcinoma.". Mod Pathol 23 (3): 404-12. doi:10.1038/modpathol.2009.179. PMID 20062014.