Vulvar cancer is a relatively uncommon malignancy, occurring at a rate of 2.2 per 100,000 women per year. Squamous cell carcinoma (SCC) is the most common type of vulvar cancer and is observed in 80% to 90% of cases. There are at least two quite different types of SCC of the vulva. The less common, accounting for about one-third of cases, occurs in relatively young women, is usually preceded by the undifferentiated form of vulvar squamous intraepithelial neoplasia (VIN) and is associated with high-risk human papillomavirus (HPV) infection; the more frequent form develops in elderly patients, is not commonly associated with undifferentiated VIN but is frequently associated with differentiated VIN, lichen sclerosus or squamous hyperplasia, and is generally not linked to HPV infection. Relatively little is known about molecular changes in the genesis of vulvar cancer. Some studies suggest that early p53 mutation may be a defining step only in HPV-negative tumors. A rather small study suggests that mutation in phosphatase and tensin homologue (PTEN) is an early change in a substantial subset of vulvar carcinomas.
Category
Cancer
Brite
Human diseases [BR:br08402]
Cancers
Cancers of the breast and female genital organs
H00029 Vulvar cancer
Human diseases in ICD-11 classification [BR:br08403]
02 Neoplasms
Malignant neoplasms, except primary neoplasms of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms of female genital organs
2C70 Malignant neoplasms of vulva
H00029 Vulvar cancer
Vulvar cancer in young women: demographic features and outcome evaluation.
Journal
Am J Obstet Gynecol 200:645.e1-5 (2009) DOI:10.1016/j.ajog.2009.01.014
Reference
PMID:10955808
Authors
Holway AH, Rieger-Christ KM, Miner WR, Cain JW, Dugan JM, Pezza JA, Silverman ML, Shapter A, McLellan R, Summerhayes IC.
Title
Somatic mutation of PTEN in vulvar cancer.
Journal
Clin Cancer Res 6:3228-35 (2000)
Reference
PMID:11156383
Authors
Brooks LA, Tidy JA, Gusterson B, Hiller L, O'Nions J, Gasco M, Marin MC, Farrell PJ, Kaelin WG Jr, Crook T.
Title
Preferential retention of codon 72 arginine p53 in squamous cell carcinomas of the vulva occurs in cancers positive and negative for human papillomavirus.
Journal
Cancer Res 60:6875-7 (2000)
Reference
PMID:15203746
Authors
Marjoniemi VM.
Title
Immunohistochemistry in gynaecological pathology: a review.