Vulval Itching/Lesion Flashcards
What is the vulva
area of skin that stretches from the labia majora laterally to the mons pubis anteriorly and the perineum posteriorly, overlapping with the vestibule (area between labia minora and the hymen)
What are the causes of vulval itching
Infection: candidiasis, condylomata acuminata (HSV warts), pubic lice, scabies
Derm: eczema, psoriasis, lichen simplex, lichen sclerosus, lichen planus, dermatitis
Neoplasia: carcinoma, VIN
Other: Bartholin’s cyst, vaginal cyst, vaginal adenosis
What are the symptoms of condylomata acuminata
Asymptomatic
or
Painful ulcers on the external genitalia ± cervix & rectum
Dysuria
Vaginal discharge
Fever/myalgia (rare)
What is the management for condylomata acuminata
Saline baths
Analgesia, topical anaesthetics
Antiviral drugs (oral better than topical) e.g. Acyclovir, valaciclovir, famciclovir
Catheterisation for acute urinary retention
What is lichen simplex
Chronic inflammatory skin condition
AKA chronic vulval dermatitis
Sensitive skin, dermatitis or eczema result in lichen simplex
What are the symptoms and signs of lichen simplex
Severe intractable pruritus, especially at night
- May be exacerbated by chemical or contact dermatitis
- May be linked to stress or low iron
Area (typically labia majora) is inflamed and thickened with hyper and hypopigmentation
What investigations should be done for lichen simplex
Clinical diagnosis
If in doubt - vulval biopsy
What is the management for lichen simplex
Aim is to break the itch-scratch cycle
Avoid irritants e.g. soap
Emollients
Steroid creams
Antihistamines
What is lichen sclerosus
Vulval epithelium is thin with the loss of collagen
May have an autoimmune basis
(associated with vulval carcinoma - 5%)
What are the symptoms and signs of lichen sclerosus
Severe pruritus, Worse at night
Trauma with bleeding and skin splitting
Discomfort, pain, dyspareunia
Pink-white papules → coalesce to form parchment-like skin with fissures
Inflammatory adhesions → labial fusion → narrows the introitus
Hx thyroid issues or vitiligo
What investigations should be done for lichen sclerosus
Biopsy - exclude carcinoma and confirm diagnosis
What is the management for lichen sclerosus
Ultra-potent topical steroids (e.g. clobetasol proprionate (dermovate))
Second line: tacrolimus (topical calcineurin inhibitor) + biopsy (as steroid-resistant)
What is lichen planus
Affects mucosal surfaces and the genital region
Unknown aetiology
What are the signs and symptoms of lichen planus
Flat, papular, purplish lesions
- Mouth and genital regions
- Erosive
- Painful (rather than itchy)
- May see fine white lines
What is the management for lichen planus
1st line: High-dose topical steroids (e.g. Clobetasol)
2nd line: topical calcineurin inhibitor (e.g. tacrolimus)
If vaginal stenosis, dilatation with manual measures should be attempted in the first instance