Gosink B B, Leopold G R
Radiology. 1978 Feb;126(2):475-8. doi: 10.1148/126.2.475.
Eight patients with signs and symptoms of obstructive jaundice were evaluated by gray-scale echography. In each, ultrasonic identification of a dilated pancreatic duct was helpful in confirming the diagnosis of an obstructing lesion at the level of the ampulla of Vater. In only 3 could the tumor mass itself be seen on ultrasound. With the recognition of pancreatic duct dilatation, it is no longer essential for a tumor in the region of the ampulla of Vater to be large or contour-deforming before it can be identified by ultrasound.
八名有阻塞性黄疸体征和症状的患者接受了灰阶超声检查。在每例患者中，超声识别扩张的胰管有助于确诊 Vater 壶腹水平的阻塞性病变。超声仅能看到 3 例患者的肿瘤肿块本身。随着胰管扩张的识别，Vater 壶腹区域的肿瘤在通过超声识别之前，不再需要体积大或外形改变。
