We describe a 17-year-old man who developed penile annular and scrotal eczematoid syphilids with penile chancre redux. Dermoscopy showed linear-irregular and hairpin vessels with white scales in annular lesions. Histopathology displayed psoriasiform hyperplasia with perivascular lymphoplasmacytic dermal infiltrate. Rapid plasma reagin and Treponema pallidumparticle agglutination assays were positive. The lesions disappeared after intramuscular benzathine penicillin.
- genital diseases
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Handling editor Anna Maria Geretti
QW and HW contributed equally.
Contributors QW and HW: conception and planning of the study; obtaining, analysing and interpreting the data; writing of the manuscript. ZH: obtaining, analysing and interpreting the data. YMF: conception and planning of the study; obtaining, analysing and interpreting the data; critical revision of the manuscript and approval of its final version.
Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.
Competing interests None declared.
Patient consent for publication Not required.
Provenance and peer review Not commissioned; internally peer reviewed.
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