Primary peritoneal hydatid cyst with gastric fistula complicated by spontaneous pleural and bronchial fistula: report of a rare observation.

Hydatid cyst is a parasitic infection widespread in Morocco. Hydatid disease mainly affects the lungs and liver. Primary peritoneal hydatidosis has a stealth clinical evolution until it reaches complicated stages. Complications may include mass effect, rupture, allergic reactions and secondary infection. We report a very rare case of an isolated primary peritoneal hydatid cyst, first complicated by a gastric fistula and secondarily by a spontaneous pleural and bronchial fistula in a patient, who presented with isolated upper abdominal pain.