|Cysticercosis is a infection with Cysticercus, the larval form of the various tapeworms of the genus Taenia (usually T. solium in man). In humans they penetrate the intestinal wall and invade subcutaneous tissue, brain, eye, muscle, heart, liver, lung, and peritoneum. Brain involvement results in neurocysticercosis. Here we present a case of cysticercosis presenting peripheral and pulmonary eosinophilia with similar radiologic pattern of hypersensitivity pneumonitis. A 22-year-old male was referred to our department due to 6 month history of cough, sputum. Physical examination revealed bilateral rales on his both lung fields. Peripheral blood examination showed leukocytosis and marked eosinophlia (total white blood cells; 23,950/μL, eosinophils; 61.3%). Pulmonary function test revealed moderate obstructive ventilator pattern. Serum total IgE by CAP system was more than 5,000 kU/L. Chest x-ray film showed multiple nodular increased opacities in both lung fiedls. High resolution chest computed tomography (HRCT) showed multiple centrilobular nodule with diffuse involvement of both lung compatible to hypersensitivity pneumonitis. Bronchoalveolar lavage fluid analysis showed 64% of total cells were eosinophils. Serum IgG antibody to Cysticercus showd strong positive response. After treatment with Pyraziquantel and prednisolone 0.5 mg/kg of body weight, patient`s subjective symptoms and abnormal radiologic findings were disappeared.