[Cough, bloody sputum, eosinophil elevation and lung shadow]

A 47-year-old man was referred to the pulmonary clinic with a 2-year history of productive cough and 3-month history of hemoptysis. Two years ago, his chest CT scan revealed a 2 cm×2 cm well-defined nodule in the right upper lung. His cough was alleviated without treatment. Three months ago, he had a productive cough with the bloody sputum after a running to catch the bus. Physical examination was normal. Complete blood count (CBC) showed an elevated eosinophil count (42.61%). Chest CT scan showed that the enlargement of the right upper lobe nodule (3.4 cm×3.3 cm), with bilateral pathy lesions distributed in the right upper lobe and the left lower lobe. Pathological study of needle specimen biopsy showed the lamellated cyst wall of hydatid cyst, brood capsule formation and hooklet. Pulmonary hydatidosis was diagnosed. It was recommended that the patient should be treated by surgery combined with albendazole. His symptoms relieved and lung nodules were shrinking without treatment after 5 years follow-up.