Painful interdigital lesion: could it be syphilis?

Abstract

Syphilis is a sexually transmitted infection (STI) caused by the spirochete Treponema pallidum (1). Low and medium-income countries are overburdened, nonetheless high-income countries also face an increasing incidence since the year 2000 (2). In Brazil, syphilis is a grave public health problem, with an incidence of 42.7 per 100.000 in 2015 (3).

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