[An unusual cause of generalized peritonitis: intraperitoneal rupture of an infected urachal cyst. A case and review of the literature].

The authors report a case of acute peritonitis due to intraperitoneal perforation of an infected urachal cyst. A review of the literature found only 15 similar cases. The presence of a lower midline mass, an umbilical discharge together with ultrasound examination should suggest the possibility of urachal pathology, especially and urachal cyst, with subsequent surgical treatment.