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Although carcinoma of the gallbladder has a low overall prevalence, it is the most common malignant tumor of the biliary tract. Retrospectively, 59 cases of histologically proved gallbladder carcinoma were reviewed. The series consisted of 42 women and 17 men, ranging in age from 35 to 86 years. Clinical manifestations of gallbladder carcinoma include right upper quadrant pain, anorexia, weight loss, and jaundice. Radiologic findings included focal or diffuse thickening of the gallbladder wall (49%), a mass in the gallbladder fossa (37%), and an intraluminal mass (14%). Associated I Froni the I)epartn ents of Radiological Sciences (

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Ultrasonographic evaluation of a suspected abdominal mass in children is becoming routine. Recognition of a rare congenital anomaly known as duplication of the gastrointestinal tract might aid in diagnosis and obviate the need for an extensive workup. Two cases are presented that clearly demonstrate the ultrasonographic spectrum of findings in this condition, ranging from a sonolucent cyst to an echogenic mass. An echogenic inner rim seen ultrasonographically is highly suggestive of the diagnosis.

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