[A case of posterior mediastinal mature teratoma].

The chest radiograph of a 57-year-old man, complaining of paroxysmal dyspnea, suggested the probably of a tumor. Chest CT showed a tumor containing calcification, behind the left crus of the diaphragm. Chest MRI suggested lipid components and a cystic lesion within the tumor.

[A case of pseudo-meigs syndrome due to ovarian clear cell adenocarcinoma].

A 59-year-old woman was admitted with dyspnea. A chest X-ray film revealed a large amount of pleural effusion at the both sides. No malignant cells were found in bilateral pleural effusions.

[A major outbreak of Legionnaire's disease due to a public bathhouse: clinical examination].

The largest epidemic outbreak of legionnaires' disease occurred in Japan, where there were 45 cases, including three deaths. There was a high degree of homology at the genetic level between Legionella pneumophila sero-group 1 isolated from two patients and water samples collected from a public bath, and this highlighted the public bath visited by the patients as the source of the infection. We report our clinical observations of 34 cases with a pneumonia type (20 definite and 14 probable) of the 42 cases for whom a diagnosis was made and follow-up care was subsequently provided at our hospital or hospital-affiliated facilities, out of the initial total of 45 cases.

[A case of immotile-dyskinetic cilia syndrome responding to clenbuterol hydrochloride and azithromycin].

In this case, a 30-year-old man had been treated for chronic sinusitis and bronchiectasis since 2000, and presented at our outpatient clinic in May 2001 with chief complaints of massive yellow sputum expectoration and dyspnea. After he was admitted by our hospital, Pseudomonas aeruginosa bacteria were isolated at the rate of 10(8)/ml from his sputum culture. In electron-microscopic observation, the cilia of the bronchial epithelium were found to lack dynein arms.