نتایج جستجو برای: endoscopic ultrasound
تعداد نتایج: 157001 فیلتر نتایج به سال:
Endoscopic ultrasound has been used to diagnose and stage gastrointestinal and nongastrointestinal tumours. To our knowledge, the present report describes the first case of celiac and perigastric lymph node metastasis of prostate cancer diagnosed with endoscopic ultrasound-guided fine-needle aspiration.
Intraductal papillary mucinous tumors (IPMTs) are benign and malignant lesions that arise from the epithelial lining of main pancreatic duct and/or branch pancreatic ducts, with excessive mucin production (especially hyperplastic/adenomatous variety). Based on the degree of cytoarchitectural atypia on microscopic examination, IPMTs are classified as benign, borderline, carcinoma in situ and inv...
Rectal variceal bleeding, though rare, can pose significant morbidity and mortality in the wake of treatment failure. Conventional treatment utilizing endoscopic glue injection might not be feasible in all cases due to poor visualization and inadvertent missing of variceal source of bleed. Endoscopic ultrasound (EUS)-guided rectal variceal management is a promising and effective modality. We pr...
CONTEXT Complete agenesis of the dorsal pancreas is an unusual congenital anomaly. Nowadays, the diagnosis is based on four imaging studies: transabdominal ultrasonography, computed tomography, magnetic resonance cholangiopancreatography and, the gold-standard, endoscopic retrograde cholangiopancreatography. Sometimes the ability of these studies are limited to distinguishing agenesis of the do...
BACKGROUND EUS is complicated because of the subtleties of US interpretation, small fields of observation, and uncertainty of probe position and orientation. OBJECTIVE Improved EUS performance is sought by providing contextual information to support US probe positioning and identification of features in US images. Our aims were to demonstrate the feasibility of the image registered gastroscop...
BACKGROUND When encountering solid pancreatic lesions, nonpancreatic primary metastases are rare and differentiating a metastasis from a primary neoplastic lesion is challenging. The clinical presentation and radiologic features can be similar and the possibility of a pancreatic metastasis should be considered when the patient refers to a history of a different primary cancer. Endoscopic ultras...
ackground and Objectives: Ultrasound (US) is the initial imaging test used in the evaluation of patients with biliary tract disease. Our retrospective study was designed to evaluate the capacity of ultrasound to determine the cause and site of bile ducts dilatation, and to compare the accuracy of ultrasound with endoscopic retrograde cholangiopancreatography (ERCP), a well-accepted procedure an...
Endoscopic ultrasound is the most accurate type of examination for the assessment of rectal tumors. Over the years, the method has advanced from gray-scale examination to intravenous contrast media administration and to different types of elastography. The multimodal approach of tumors (transrectal, transvaginal) is adapted to each case. 3D ultrasound is useful for spatial representation and pr...
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