Vulva Flashcards
Bartholin cysts are located
lower vestibule adjacent to vaginal canal
HPV subtypes
low risk
high risk
low risk: HPV 6 or 11
high risk: 16, 18, 31, 33
Condyloma etiology
HPV 6 or 11
HPV-infected cells histology
koilocytes–coiled nuclei
“raisinoid” nuclei
Lichen sclerosis
thin epidermis with hypertrophy of dermis
occurs in leukoplakia area
slightly increased risk for squamous cell carcinoma
Lichen simplex chronicus
hyperplastic epidermis
2˚ to chronic irritation and scratching
leukoplakia with thicker, leathery skin
no increased risk for squamous cell caricnoma
Lichen sclerosis vs lichen simplex chonicus
scerlosis: thinning of epidermis, increased risk for squamous cell carcinoma
simplex chronicus: thickening of epidermis, increased risk for squamous cell carcinoma
=> both in setting of leukoplakia
Non-HPV related squamous cell caricinoma of vulva is caused by what
lichen simplex chronicus
leukoplakia
may be precancerous
Non-HPV vulvar carcinoma usually in this population
women > 70
from longstanding lichen sclerosis
Extramammary Paget disease
pathology findings
malignant cells found in epidermis
carcinoma in situ
erythemitis, pruritic, ulcerated vulvar skin
Extramammary Paget disease vs Paget disease of nipple
both caricnoma in situs
Paget of nipple has underlying breast caricnoma under it
extramammary Paget is standalone in situ carcinoma
Extramammary Paget distringuished from what other entity
melanoma
How to differentiate extramammary Paget and melanoma
Paget: keratin +, S100-, PAS+
Melanoma: keratin -, S100+, PAS-
PAS stain stains for what
mucus secreting cells
only in epithelial tissue ie Paget