Polyserositis revealing a signet ring cells gastric adenocarcinoma in a 27 years old male patient: A case report.

Abstract Gastric cancer remains one of the most common and deadly cancers worldwide, especially among old males. It is rare in the younger population (< 30 years old). We describe the case of a 27 years old male patient, presenting to the emergency department, with exsudative polyserositis, initially misdiagnosed and treated as a multifocal tuberculosis with no clinical improvement, later revealing a metastatic signet ring cells gastric adenocarcinoma.