Spontaneous rupture of a hydatid cyst is reported in a 19-year-old cattlema
n. Mechanical ventilation for respiratory failure and a light lower lobecto
my were required for flooding of the airway with hydatid cyst fluid. The po
stoperative course was complicated by the development of acute respiratory
distress syndrome. Complete recovery occurred with no recurrence following
treatment with albendazole, praziquantel and partial hepatectomy.