[A case of infantile thoracic actinomycosis involving the bronchocutaneus fistula].

Pulmonary actinomycosis is rare at present. A 11-year-old girl complained of left anterior chest pain and chest wall swelling. A radiograph of the chest revealed a consolidation in the left upper lobe. Sputum cultures showed normal flora and sputum cytology was negative for malignant disease. On 16 days after admission, the infection involved the bronchocutaneous fistula. Surgery was necessary to curettage. Histopathological specimen of resected necrotic tissue showed typical "sulfur granule" of actinomycosis. We administered penicillin for 3 months and the consolidation disappeared.