The best modality for detecting gallstones is a transabdominal ultrasound (TAUS). Patients who present with right upper quadrant pain are suspected of having gallstone disease. The patients symptoms are usually accompanied by a normal physical examination and normal laboratory results including those for leukocytosis and pancreatic enzyme levels. In obese patients, or patients where imaging is practically difficult an esophageal ultrasound (EUS) with high sensitivity may be used.
Gallstone disease diagnostic study of choice
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Gallstone disease other imaging findings
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Gallstone disease other diagnostic studies
Cholangitis diagnostic study of choice