Tetsu Okamoto

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BACKGROUND Sclerosing cholangitis with autoimmune pancreatitis has a cholangiographic appearance that is similar to that of primary sclerosing cholangitis, but only the former responds well to corticosteroid therapy. It, therefore, is necessary to distinguish between these two diseases. Cholangiography is the reference standard for the diagnosis of primary(More)
OBJECTIVES Sclerosing cholangitis (SC) with autoimmune pancreatitis (AIP) is similar to primary sclerosing cholangitis (PSC) with regard to cholangiographic findings, but only the former responds well to steroid therapy. This report concentrates on the clinical differences between these diseases. METHODS The presenting complaint or abnormality, associated(More)
Simple liver cysts are rarely complicated by intracystic hemorrhage. We encountered a case of simple liver cyst that was morphologically similar to biliary cystadenocarcinoma, which was complicated by asymptomatic intracystic hemorrhage and successfully treated by right lobectomy. A large cystic lesion of the liver was detected in a 57-year-old woman during(More)
A 37-year-old man presented complaining of epigastralgia. Abdominal ultrasonography revealed the presence of a papillary tumor (9 mm in diameter) in the cystic lesion (18 mm in diameter) in hepatic segment 4, which was accompanied by mild intrahepatic bile duct dilatation. Although abdominal computed tomography also showed the cystic lesion, it did not show(More)
OBJECTIVES FTY720, a novel synthetic immunosuppressant, decreases peripheral blood lymphocytes by accelerating their homing to the peripheral and mesenteric lymph nodes and Peyer's patches. We previously reported that tacrolimus, another immunosuppressant, attenuates chronic pancreatitis by suppressing T-cell infiltration in male Wistar Bonn/Kobori rats but(More)
We report the clinical application of a novel double lumen catheter for veno-venous extracorporeal lung assist (ECLA) and the use of a heparin-bonded hollow fiber membrane lung, in the treatment of newborn respiratory failure. The outer lumen of the double lumen catheter was 14 Fr and was used for blood drainage; while the inner 8 Fr catheter was used for(More)
A 59-year-old man with bloody stools, and previously diagnosed with sigmoid colon carcinoma, visited our hospital. Preoperative abdominal ultrasonography (US) showed another tumor, with an uneven irregular surface, measuring about 9 × 5 cm, below the left hypochondrium. The tumor consisted of several cysts. Abdominal computed tomography (CT) showed a(More)
We recently demonstrated that both lisinopril and candesartan, an angiotensin-converting enzyme inhibitor and angiotensin II type 1 receptor blocker, respectively, attenuate pancreatic inflammation and fibrosis in male Wistar Bonn/Kobori (WBN/Kob) rats. The purpose of the present study was to assess whether combination therapy with low doses of both,(More)
A 74-year-old woman was transferred to our hospital for further examinations because of abdominal fullness and abnormal levels of serum liver/biliary enzyme persisting for 3 weeks. She had anemia and dilatation of many capillary vessels in her fingers, palms, and tongue in addition to reporting frequent incidences of nasal bleeding in herself and her(More)
Helium microwave-induced plasma (He-MIP) for trace element analysis is generated by a 2.45 GHz microwave power ( ~ 1 kW) with the Okamoto cavity of the surface wave mode at atmospheric pressure, and an iron excitation temperature and an electron density of the plasma are measured. With 0.8 kW input microwave power, an excitation temperature of 8000 K and(More)
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