Conquer the PAEA OB-GYN EOR Challenge 2025 – Ace Your Rotation with Confidence!

Question: 1 / 400

In a case of syphilis, what is the characteristic presentation of the primary lesion?

Painful vesicular ulcer

Painless ulcer

The characteristic presentation of the primary lesion in syphilis is a painless ulcer, known as a chancre. This lesion typically appears at the site of infection about three weeks after exposure to the Treponema pallidum bacterium, which is responsible for the disease. The chancre is often indurated (hardened) and has a clean base and smooth edges, making it distinctive.

In contrast, painful vesicular ulcers are more indicative of conditions such as herpes simplex virus infections. Fever and malaise are common systemic symptoms in various infections but are not specific to primary syphilis. Raised, red lesions may be associated with other dermatological or infectious conditions but do not represent the primary chancre of syphilis. Thus, recognizing the painless nature of the ulcer in primary syphilis is essential for accurate diagnosis and appropriate management.

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Fever and malaise

Raised, red lesions

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