[A case of severe Legionella pneumonia monitored with serum SP-A, SP-D, and KL-6]

A 67-year-old man was admitted for acute pneumonia on July 20th, 1999. Chest radiographs disclosed dense consolidation in the right lower lung fields. After admission, the pneumonia underwent rapid advance. On the basis of serological findings and cultures of pleural effusion and sputum, the patient was given a diagnosis of acute pneumonia caused by Legionella pneumophila 1 a. He gradually recovered from the pneumonia by means of chemotherapy using EM, RFP, Mino, gammaglobulins and steroids. The serum SP-A, SP-D, and KL-6 peaked on July 23rd, July 30th, and August 12th, respectively.