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[A case of pulmonary sequestration with atypical mycobacterial infection].

A 30-year-old woman complaining of cough, bloody sputum and left chest pain was admitted to our hospital. She had a history of recurrent pneumonia in the left lower lobe. On admission an abnormal shadow was recognized in the left lower lobe on chest radiograph. An enhanced CT scan showed an abnormal blood vessel extending from the descending aorta to the left lower lung. Aortography also indicated one aberrant artery, 15 mm in diameter, extending from the thoracic aorta to the left lower lobe. Pulmonary sequestration was subsequently diagnosed, and left lower lobectomy was later performed. Pathological examination after surgery revealed epithelioid cell granulomas and atypical Mycobacteria avium were detected on sputum culture. Cases of pulmonary sequestration complicated by atypical mycobacterial infection are rare.