title: [Ultrasonic and CT diagnosis of large upper abdominal mass].
abstract: OBJECTIVE
  To assess accuracy of ultrasonic (US) and CT diagnosis of big mass in the upper abdomen.
  
  
  METHODS
  Data from 38 clinically and pathologically confirmed cases were retrospectively analyzed and accuracy of their preoperative US and CT diagnosis compared.
  
  
  RESULTS
  US diagnosis was correct in 3 of 9 (33.3%) cases with a mass in the liver, in 16 of 21 (76.2%) cases with a mass in the adrenal gland and in 2 of 4 cases with a mass in the kidney. In contrast, CT diagnosis was correct in 2 of 9 (22.2%) cases with a mass in the liver, in 4 of 18 (22.2%) cases with a mass in the adrenal gland and none in a case with a mass in the kidney. In 4 cases with a mass in the spleen, neither US nor CT diagnosis was correct.
  
  
  CONCLUSIONS
  Because organs in the upper abdomen are closely located with each other, correct imaging localization of big mass in this region is not without difficulty. In this series, accuracy of diagnosis with US and CT is comparable, but for localizing tumor in the adrenal gland, US imaging seems superior. US and CT are both incapable of accurately diagnosing large mass in the spleen.
authors.affiliation: Department of Diagnostic Radiology, Cancer Institute (Hospital), Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing 100021.
authors.forename: L
authors.initials: L
authors.lastname: Niu
authors.forename: Y
authors.initials: Y
authors.lastname: Hao
authors.forename: J
authors.initials: J
authors.lastname: Dai
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging*; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography