Ryoichi Kato

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We investigated the postoperative mortality and long-term survival of lung cancer patients with underlying idiopathic pulmonary fibrosis (IPF). The data of 387 primary lung cancer patients treated by surgical resection at our hospital between 1995 and 2008 were retrospectively reviewed. Clinicopathological characteristics such as age, gender, survival,(More)
BACKGROUND Pulmonary metastasis from prostate cancer is considered to be a late event, and patients can be treated with chemotherapy or hormonal manipulation. However, there has been only a few reports on surgical resection for pulmonary metastasis from prostate cancer. CASE PRESENTATION We present a surgical case of solitary pulmonary metastasis from(More)
A 52-year-old man noted large amounts of bloody sputum and visited our hospital. Chest X-ray showed a mass shadow in the right upper lung field. He was diagnosed with squamous cell carcinoma (SCC). Although he was not aware of symptoms other than the bloody sputum, his blood chemistry showed a high total serum protein level of 10.6 g/dl. Further analysis of(More)
BACKGROUND Cases of recurrent inflammatory pseudotumor have only rarely been reported. The treatment for recurrent pseudotumor is surgery. Patients not eligible for surgery require different treatment, and the optimal type of the treatment is controversial. CASE PRESENTATION A 54-year-old woman was noted to have an abnormal shadow in the right middle lung(More)
The patient was a 59-year-old woman in whom computed tomography revealed a posterior mediastinal cyst and ovarian cystoma at a medical check-up in March 2007. Blood tests showed high CA19-9 and CA125 levels. She underwent left adnexectomy for ovarian cystoma in July 2008 and histopathological examination led to a diagnosis of dermoid cyst. The postoperative(More)
Pleomorphic adenoma usually occurs in the salivary glands but rarely in the trachea or bronchi. A 71-year-old man had abnormal shadows on a chest X-ray. Chest CT revealed one tumor in the right basal segment of the lung and another, in the left main bronchus. Bronchoscopic biopsy of the right tumor revealed well-differentiated squamous cell carcinoma. Right(More)
Mycobacterium chelonae lung infection is rare and has long been recognized as an enigmatic infection resistant to medical therapy. Recently, we encountered a patient who underwent pulmonary resection for Mycobacterium chelonae infection. A 46-year-old man with no medical history was found to have an abnormal shadow in the left upper lung field on chest(More)
The patient was a 50-year-old male psychiatrist with a history of smoking 3 packs of cigarettes per day for 30 years. Chest computed tomography (CT) showed a nodular shadow in the left S6 segment in April 2002, for which thoracoscopic partial resection of the lung was performed. Because adenocarcinoma was diagnosed by intraoperative frozen sectioning, a(More)
 Purpose: To compare VMCP, a multidrug combination chemotherapy comprising vincristine (VCR), melphalan (MPH), cyclophosphamide (CPM) and prednisolone (PSL), with MMPP comprising MPH, ranimustine (MCNU), procarbazine, and PSL as induction, to elucidate the value of alternating combination chemotherapy, and to search for an appropriate maintenance therapy in(More)
Reports of cavitary lung cancer are not uncommon, and the cavity generally contains either dilated bronchi or cancer cells. Recently, we encountered a surgical case of cavitary lung cancer whose cavity tended to enlarge during long-term follow-up, and was found to be lined with normal bronchial epithelium and adenocarcinoma cells.