Steroid resistance in organizing pneumonia caused by pulmonary cryptococcosis.

Cryptogenic organizing pneumonia (COP) usually responds well to steroid therapy; however, recurrence is commonly observed when the steroid dose is tapered. A 74-year-old man suspected of having steroid-resistant COP presented to our hospital. Chest computed tomography (CT) revealed new consolidations of the left inferior lobe despite administration of a moderate dose of oral steroids.

Advanced Lung Adenocarcinoma with Nivolumab-associated Dermatomyositis.

We herein report a 42-year-old man with advanced lung adenocarcinoma and nivolumab-associated dermatomyositis. Nivolumab, an anticancer drug that is classified as an immune checkpoint inhibitor, often induces immune-related adverse events (irAEs). However, there have so far been no reports regarding nivolumab-associated dermatomyositis.

Early-stage diffuse panbronchiolitis in a young patient confirmed by video-assisted lung biopsy: A case report.

A 29-year-old man presented with sputum and cough, which were pointed out by his neighbors. A high-resolution chest computed tomography scan showed well-defined multiple centrilobular nodules and a tree-in-bud pattern. Chest auscultation revealed coarse crackles.

A young immunocompetent patient with spontaneous empyema who developed severe eosinophilia.

empyema is usually reported as a complication of surgical procedures, and spontaneous cases are quite rare. Here, we describe the case of a 16-year-old man who suddenly developed dyspnea despite previously being healthy. Chest computed tomography showed multiple mass-containing cavity lesions, pneumothorax, and pleural effusion in the left thorax.