A mismanaged case of hydatid disease of lung.

We report a 50 years old female who was admitted to our clinic for investigation of pneumonia. She had responded to antibiotics but full regresson was not observed. Chest x-rays demonstrated lobar consolidation. Fiberoptic bronchoscopy revealed a vegetative whitish membranous material in the medial segment of right middle lobe. Pathological and microbiological examination of the bronchoscopic material showed features of a pulmonary hydatid cyst with cuticle. The diagnosis was confirmed by serology and lobe resection. Patient had presented in an unusual way for diagnosis of hydatid cyst.