Clinical value of different imaging techniques in the diagnosis of periampullary carcinoma
10.3760/cma.j.issn.1673-9752.2012.05.015
- VernacularTitle:不同影像学检查方法对壶腹周围癌的诊断价值
- Author:
Chunlin TANG
;
Rui LI
;
Anli GUO
;
Xiaohang ZHANG
;
Zhaohui CHEN
;
Yonglin CHEN
;
Ping BIE
- Publication Type:Journal Article
- Keywords:
Periampullary neoplasms;
Ultrasonography;
MRCP;
MRI
- From:Chinese Journal of Digestive Surgery
2012;11(5):452-454
- CountryChina
- Language:Chinese
-
Abstract:
Periampullary carcinoma is a rare malignant tumor of digestive system,and its accurate diagnosis is still difficult.From January 2007 to July 2012,12 patients with periampullary carcinoma had been admitted to the Southwest Hospital of Third Military Medical University,and the imaging data were retrospectively analyzed.The results of ultrasonography revealed that all tumors were hypoechoic.The tumor displayed hyperenhancement in 3 patients,isoenhancement in 1 patient,hypoenhancement in 8 patients during the arterial phase on contrastenhanced ultrasonography (CEUS),while the tumor displayed hypoenhancement in all patients during the venous phase.Magnetic resonance imaging (MRI) plain scanning showed duodenal papilla enlargement in 1 patient,ampullary tissue mass signal in 2 patients,tissue mass signal at distal common bile duct in 2 patients,the rest 7 patients did not show tissue mass signal.Lower biliary obstruction was the common manifestation of the 12 patients on magnetic resonance cholangiopancreatography (MRCP),intrahepatic and extrahepatic bile vine-like expansion in 4 patients,double duct sign in 2 patients,the bottom of common bile duct with filling defect in 2 patients and it revealed beak-like narrow in 1 patient.CEUS,MRI and MRCP could both play an important role as conventional methods in diagnosing periampullary carcinoma.
