07/12/2025
A 25 year old commercial s*x worker presented to OPD with a complaint of multiple lesions over her ge****ls. On examination, there are multiple 1 to 2cm pink tan cauliflower like nodules over the v***a and perineum. Microscopic examination of the lesion revealed finger like projections with acanthosis of the stratified squamous epithelium and koilocytosis. What is the most likely cause of her presentation?
A) Condylomata lata
B) Lichen sclerosis
C) Condylomata acuminata
D) Squamous cell carcinoma
Correct Answer: C) Condylomata acuminata
The patient has:
- Multiple pink-tan, cauliflower-like, exophytic nodules
- Located on v***a and perineum
- Histology: finger-like projections, acanthosis, koilocytosis (HPV cytopathic change)
These features are classic for condylomata acuminata (anoge***al warts) caused by HPV types 6 and 11.
According to:
* CDC STI Guidelines – ge***al warts are soft, papillomatous, cauliflower-like lesions; koilocytosis is typical histology.
* Williams Gynecology – HPV 6/11 lesions show acanthosis, papillomatosis, and koilocytosis.
* Harrison’s – condylomata acuminata are exophytic, verrucous lesions caused by low-risk HPV.
Why the Other Options Are Incorrect
A) Condylomata lata
Why incorrect:
- Caused by secondary syphilis (Treponema pallidum).
- Lesions are broad-based, flat, moist, smooth, often grey or whitish—not cauliflower-like.
- Histology does not show koilocytosis.
- CDC and WHO syphilis guidelines describe condylomata lata as flat, velvety, moist plaques, not papillomatous warts.
Key features from standard references:
- Not exophytic
- Not associated with HPV changes such as koilocytosis
- Typically highly infectious mucous patches
B) Lichen sclerosus
Why incorrect:
- A chronic inflammatory dermatosis, NOT an STI.
- Lesions are white, atrophic, parchment-like plaques, often leading to scarring.
- No exophytic or cauliflower-like growths.
- Histology shows thinning of epithelium, homogenization of collagen, not acanthosis with koilocytes.
References:
*Williams Gynecology – lichen sclerosus leads to white plaques, fissuring, thinning.
*Dermatology texts (e.g., Fitzpatrick’s) – no verrucous growths or viral cytopathic effect.
D) Squamous cell carcinoma (SCC)
Why incorrect:
- Vulvar SCC typically presents as ulcerated, indurated, or erythematous plaques or masses.
- Can be exophytic, but histology shows keratin pearls, atypia, invasion—not koilocytosis.
- While high-risk HPV (16, 18) can be involved, the described lesion is benign and typical for low-risk HPV 6/11 ge***al warts.
References:
*Harrison’s – SCC shows dysplasia → carcinoma in situ → invasion.
*Williams Gynecology – SCC morphology differs from benign condyloma; histology clearly distinct.
Condition Morphology Histology
Condylomata acuminata (HPV 6/11)Pink, papillomatous, cauliflower-likeKoilocytosis, acanthosis, papillomatosis
Condylomata lata (Syphilis)Flat, smooth, moist plaquesPlasma cell infiltrate, no koilocytes
Lichen White, thin, atrophic plaques Thinning epithelium, sclerosis
SCCUlcerative or indurated massAtypia, keratin pearls, invasion