Masayuki Sada

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Survival time of 73 patients with undiagnosed gallbladder carcinoma incidentally found after cholecystectomy treated between 1982 and 2000 was evaluated in relation to various variables, with special reference to the significance of the radical second resection. The most significant prognostic factor was the depth of tumor invasion as assessed by univariate(More)
OBJECTIVE To assess the usefulness of laparoscopic cholecystectomy for unsuspected and suspected gallbladder carcinoma. DESIGN Retrospective review with a mean follow-up of 27 months, ranging from 1 to 47 months. SETTING University hospital and 8 affiliated hospitals. PATIENTS Of 2616 laparoscopic cholecystectomies performed over 4 years, 24(More)
A total of 60 leprosy patients, 28 of lepromatous and 32 of tuberculoid form, and 70 active tuberculosis patients was compared with a control of 184 for 34 HLA specificities. The most interesting finding was an increased frequency (10.0%) for HLA-B8 (corrected P = 0.062, relative risk = 20.3) in the leprosy patients as compared with the control group,(More)
PURPOSE autoimmunity has been proposed as one of the pathogenesis of abdominal aortic aneurysm (AAA). There is also a likelihood that when aorto-iliac occlusive disease (AIOD) coexists with AAA, some other occlusive atherosclerotic diseases, such as ischemic heart disease and cerebrovascular disease, may develop, leading to a very poor long-term prognosis.(More)
BACKGROUND/AIMS Single-incision laparoscopic cholecystectomy (SILC) is a promising alternative to standard multi-incision laparoscopic cholecystectomy (LC). However, generalization of SILC is still hampered by technical difficulties mainly associated with the lack of trocars used for retraction of the gallbladder. We therefore developed a modified method of(More)
103 adult patients with biopsy-proved IgA nephropathy were typed for HLA-A and HLA-B antigens and 80 of these cases were typed for HLA-DR antigens. A significant association with HLA-DR4 was clearly noted (pc less than 0.04). The high phenotype frequency (PF) of BW35 was observed in the patients, but not statistically significant (pc less than 0.2). Two(More)
CASE A 75-year-old man was admitted for anemia, and a tar stool found by endoscopic examination revealed a type 3 advanced gastric cancer in the lower stomach. Multiple liver metastases 4 cm in diameter were shown on CT. Because we thought that the case was unresectable, S-1/CPT-11 chemotherapy was performed. S-1 (80mg/body/day) was orally administered for(More)
To evaluate the role of endoscopic retrograde cholangiography (ERC) before laparoscopic cholecystectomy, we compared the frequency of concomitant common bile duct stones, their clinical outcome, and the frequency of bile duct injury between a group of 128 patients with routine preoperative ERC (group A) and 1010 patients with selective ERC (group B).(More)
Ten intact wrist joints were examined to evaluate the hamate hook visualisation by a hamate hook lateral radiographic view. Results of the study indicated that this 30 degrees -tilted lateral wrist radiographic projection with palmar abduction of the thumb clearly revealed the hamate hook from its base to the tip in the first web space away from the(More)
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