[Case of HLA-DR8 positive sarcoidosis following polymyositis and Sjögren's syndrome].

A 69-year-old woman had been found to have idiopathic interstitial pneumonia (fibrotic NSIP) in 1997. Proximal muscle weakness appeared in April 2005. Chest CT revealed hilar and mediastinal lymphadenopathy.

[Case of acute interstitial pneumonia that responded to therapy but relapsed six months later].

A 66-year-old man was admitted because of general fatigue. A chest computed tomography showed bilateral alveolar consolidation and ground glass opacities. Although we treated him with broad-spectrum antibiotics, his symptoms and chest image findings did not improve.

[A case of Wegener's granulomatosis associated with the syndrome of inappropriate secretion of ADH].

A 68 year-old woman was admitted with fever, productive cough and sore throat. A chest radiograph and a chest computed tomography showed multiple nodules in both lungs. Thoracoscopic lung biopsy was performed.