Diagnosis of Low-tension CT and MRI on Carcinoma Around Vater’s Ampulla / 实用放射学杂志

ABSTRACT

Objective To investigate diagnostic value of low-tension computed tomography(CT) and magnetic resonance imaging(MRI) on carcinoma around Vater’s ampulla.Methods The data of CT and MRI of 30 patients with carcinoma around Vater’s ampulla confirmed by pathology were analysed retrospectively.Results 30 patients all had different degree obstruction of low part of biliary tract. CT or MRI showed the location, size and relationship with abjacent tissue of carcinoma in 26 patients, and the finger-stall sign of the descending part of the duodenum in 18 patients among them. Space occupying lesion of carcinoma was found dimly in 4 patients, no space occupying lesion of carcinoma was found in 3 patients.Conclusion The finger-stall sign of the descending part of the duodenum and finding of mass of ampulla are characteristic findings of carcinoma around Vaterys ampulla, low-tension CT and MRI are valuable methods of diagnosis of carcinoma around Vatery’s ampulla.