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OBJECTIVES:We sought to clarify the clinical utility of diffusion-weighted magnetic resonance imaging (DWI) for differentiating autoimmune pancreatitis (AIP) from pancreatic cancer.METHODS:Thirteen AIP patients underwent DWI before therapy, and six of them underwent DWI after steroid therapy. The extent and shape of high-intensity areas were compared with(More)
BACKGROUND The aim of this study was to evaluate the clinicopathologic characteristics of patients with hepatocellular carcinoma (HCC) and bile duct thrombi (BDT). PATIENTS Seventeen patients with HCC and BDT among 671 patients with HCC who underwent hepatic resection were enrolled in this study. RESULTS There were no significant differences in the(More)
Portal annular pancreas (PAP) is a rare anatomical anomaly in which the pancreatic parenchyma surrounds the superior mesenteric vein and portal vein (PV) annularly. This anomaly requires careful consideration in pancreatic resection. A case is presented and the technical issues are discussed. A 61-year-old female was referred to the hospital for suspected(More)
A population-based case-control study was conducted in men aged 60 or less to assess the risk of prostate cancer associated with vasectomy and other factors. Data were obtained from 216 case-control pairs by telephone interviews; this number represented 55% of all eligible cases. The matched pairs relative risk (RR) for vasectomy in ever married men was 1.4(More)
The prognosis of pancreatic cancer patients with metastatic para-aortic lymph node (PALN) has been reported to be extremely poor. In general, PALN metastasis has been considered as a contraindication for pancreatic resection. The aim of this study was to reevaluate the postoperative prognostic value of PALN metastasis in pancreatic cancer and to determine(More)
BACKGROUND Colorectal cancer infrequently causes brain metastasis, and the prognosis is poor. OBJECTIVE The aim of this study was to identify the prognostic factors associated with survival and outcome of treatment for patients with brain metastasis from colorectal cancer. DESIGN This is a retrospective study from a prospectively collected database. (More)
BACKGROUND The aim of the present study was to clarify the surgical outcome and long-term prognosis of laparoscopic liver resection (LLR) compared with conventional open liver resection (OLR) in patients with colorectal liver metastases (CRLM). METHODS A one-to-two propensity score matching (PSM) analysis was applied. Covariates (P < 0.2) used for PSM(More)
PURPOSE To evaluate the utility of fast, contrast-enhanced, sequential magnetic resonance (MR) imaging in differentiating between extraosseous tumor and perineoplastic edema. MATERIALS AND METHODS Fourteen patients underwent sequential MR imaging (3.5 seconds per image) after bolus administration of gadopentetate dimeglumine. Initial rates of enhancement(More)
We here report on a case of metachronous multicentric carcinomas of the biliary tract treated 3 times with curative surgery over 23 years. A 28-year-old woman underwent cholecystectomy because of papillary carcinoma of the gallbladder. After 17 years, 3 carcinomas developed in the biliary tract: intrahepatic cholangiocarcinoma of the left liver, common bile(More)
BACKGROUND An aberrant right posterior sectoral hepatic duct (PHD) draining into extrahepatic bile duct, gallbladder or cystic duct directly is a common and critical anomaly during cholecystectomy. This study aimed to investigate the frequency of aberrant PHD and describe why PHD is critical. METHODS In 753 consecutive patients who underwent laparoscopic(More)