ABSTRACT
Invasion of the human lungs by the larvae of the dog tapeworm Echinococcus granulosus (pulmonary cystic echinococcosis, PCE) is an incapacitating disease, frequently found across a wide geographic area, CE is endemic in many parts of the world, particularly the Mediterranean countries, Central Asia including the Tibetan Plateau, Northern and Eastern Africa, Australia, and South America. [1] Global burden of the human AE is approximately 18,235 new cases per annum with the majority (91%) occurring in China. [2] We report a case of 17–year–old girl student who presented with complaints of left sided pleuritic chest pain, fever and dyspnoea. X–ray chest PA view revealed gross pleural effusion on left side that was exudative in nature and did not respond to antibiotics and anti–tuberculous therapy. HRCT chest revealed large loculated cystic lesion showing calcification in left upper lobe parenchymal region suggestive of ruptured hydatid cyst. IgG antibody for E granulosus was positive. Ultrasound scan of abdomen and pelvis were within normal limits. A diagnosis of Primary pulmonary echinococcosis was made. She was treated successfully with Albendazole 400 mg bid for 21 days; six such cycles 14 days apart