Case Study : Dermatology

175. Condylomata Lata

192. Unusual anal lumps

A 29-year-old MSM (man who has sex with men) presented with "unusual anal lumps.

He reported numerous episodes of unprotected receptive anal sex.

He had recently presented to the local student health service with 3 weeks of painful anal ulceration.

Condylomata lata


The word “condyloma” comes from the Greek word meaning “knob.”

Any knob-like or warty growth on the genitals is known as a condyloma. T


he condylomatous lesions associated with secondary syphilis are called “condylomata lata.”

Condylomata lata are papular lesions located on the folds of moist intertriginous areas that coalesce to form flat, wartlike lesions, especially around the genitalia and anus. 

These broad, moist, highly infectious plaques develop at sites to which Treponema pallidum has disseminated.

They may become hypertrophic and form a soft, red, mushroom-like mass 1-3 cm in diameter. I


n contrast to condylomata accuminata, condylomata lata are more broad-based, have eroded, flat surfaces, and may be lobulated but are not covered by digitate elevations.

Examination of surface exudate under darkfield microscopy will reveal typical spirochetes and serologic tests for syphilis (VRDL, RPR) will be positive.


Condylomata Lata

Melbourne Sexual Health Centre

November 2007


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