[Gastric ulcers: a rare manifestation of secondary syphilis]. / Ulceras gástricas: una rara manifestación de sífilis secundaria.

Gastric lesions in the progression of syphilis are very rare and they have several forms of presentation resembling lesions of different nature. We describe a case of secondary syphilis in an heterosexual patient, with persistent gastric ulcers and hepatic affection, in which the evolution and the observations with laparotomy suggested neoplasia. In the gastric biopsy, an infiltration of plasmatic and neutrophil cells was observed and in the hepatic biopsy, necrotic nodules and granulomas. The spirochaeta-specific tinction, although not indispensable, confirms the diagnosis of gastric syphilis. The previous presence of a syphilitic chancre and typical cutaneous lesions are of great help in suspecting a luetic process.