[Gastric syphilis: infrequent presentation of a common disease]. / Sífilis gástrica: presentación infrecuente de una enfermedad común.

A stenosing antral lesion was diagnosed in a patient with previous ulcer dyspepsia. Radiology, gastroscopy and serology made the diagnosis of gastric syphilis. The lesion disappeared with specific therapy. We present this case because of its rare gastric onset (0.3%) among visceral syphilis, though sexual transmission diseases are increasing nowadays.