vulvar anatomy Flashcards
(46 cards)
what is lichen sclerosus?
Autoimmune: AA’s attack extracellular matrix and basement membrane
- Immune dysfunction affecting all levels of the skin
also, genetic & environmental (incontinence, infx, Koebner’s phenomenon)
presentation of lichen sclerosus?
mostly in postmenopausal women
Pruritus
pain: dysuria, dyspareunia, anal discomfort
PE findings for lichen sclerosus
Diffuse involvement of vulva
Sharply, well-demarcated, white plaques
Fragility = hallmark (purpura, erosions, fissures)
Severe cases – loss of normal anatomic landmarks
can lichen sclerosus be malignant?
Squamous cell carcinoma occurs in ~ 5%
RF: elderly, hyperkeratotic lesions
what findings are assoc. w/ malignancy?
atypical nevi and melanoma
Take any pigmented lesions very seriously
dx of lichen sclerosus
Vulvar punch Biopsy
tx for lichen sclerosus
Topical super-high potency steroid OINTMENT
1st line = Clobetasol 0.5% BID until norm texture then 1-3x per wk for maintenance
side effects of Topical super-high potency steroid
atrophy, dermatitis, rosacea
**does NOT go away. Need long-term f/u
pathophys of lichen simplex chronicus
unknown but hx of atrophy more prone
Emotional tensions may induce sensation of pruritis
environmental triggers: sweating, excessive hygiene, panty liners, topical meds, tight clothes
clinical presentation of lichen simplex chronicus?
“itch that rashes”
Progressive vulvar pruritis and/or burning for weeks to months
itch – scratch cycle
likely have anxiety/depression
physical exam findings for lichen simplex chronicus?
eczematous process
poorly marginated, red, scaling papules and plaques
Initial signs: weeping, excoriations, crusting
chronic: Lichenification and hypopigmentation w/moisture
dx for lichen simplex chronicus?
clinical based on PE
vulvar punch bx for definitive dx
Tx for lichen simplex chronicus?
identify underlying triggers
bath tub soaks, lubricants
topical steroid cream
antihistamine QHS
SSRI daily
which topical steroid creams can be used to tx lichen simplex chronicus?
hydrocortisone 1-2% traimcinolone acetonide
betamethasone valerate
lichen planus pathophys
Autoimmune
Immunosuppressive therapy is useful
clinical presentation of lichen planus?
women 50 – 60yo
introital irritation
burning
vaginal dc
PE for lichen planus
Disruption of vulvar anatomy
Can be seen on mucosal and/or keratinized surface
Non-Erosive disease: lacy, white striae
erosive dz: deep vaginal redness, vulvar erosions
Tx for lichen planus
1st line: topical steroid creams (Hydrocortisone acetate 25mg suppository QHS)
2nd line = topical tacrolimus 0.1% or systemic corticosteroids
vaginal estrogens
vaginal dilators
is lichen planus curable?
yes but high reoccurance
what is vulvar intraepithelial neoplasia
Neoplastic cells confined to squamous epithelium
Classification of VIN
grading of abnormal cells = VIN 1, 2 or 3
VIN 2 & 3 true percursors to vulvar cancer
VINu (usual) assoc. w/high risk HPV
VINd (differentiated)
which types of HPV is VINu assoc. w/?
HPV type 16,18, and 31
who gets VINu?
Seen in younger women
Same risk factors seen with CIN:
Smoking (50-80%), immunosuppression, multiple sexual partners
Presentation of VINu
May be asx
Vulvar burning and pruritus
assoc. w/ high grade CIN (colposcopy and pap smear)
bx all pigmented lesions