【Abstract】Objective To investigate the CT manifestations of chronic virus hepatitis B. Methods According to the inclusion and exclusion criteria, the clinical data and laboratory information of 120 patients with chronic virus hepatitis B were reviewed retrospectively. All patients underwent standardized contrast-enhanced spiral CT dual-phase scanning of the upper abdomen. The changes of the liver, bile duct, spleen, portal venous system, lymph node of the upper abdomen, peritoneal cavity and pleural cavity were observed and noted. Results CT manifestations of chronic virus hepatitis B were as follows: ①changes of the configuration and shape of the liver, ② changes of the density of the liver, ③intrahepatic perivascular lucency, ④thickening of gallbladder wall and edema of the gallbladder fossa, ⑤splenomegaly, ⑥enlargement of abdominal lymph nodes, ⑦ascites, ⑧abnormalities related to portal hypertension (collateral circulation), and ⑨secondary thoracic changes (pleural and pericardial effusion). Conclusion Chronic virus hepatitis B can demonstrate several abnormal findings involving the liver, gallbladder, lymph nodes, spleen, etc on contrast-enhanced CT scanning.
【Abstract】ObjectiveBy using multidetector row spiral CT (MDCT) to investigate the CT imaging findings of gallbladder abnormalities caused by hepatic parenchymal diseases and those of inflammatory cholecystitis. MethodsCT and clinical data of 80 patients with gallbladder abnormalities were retrospectively reviewed. Fifty patients were in hepatic disease group, including 20 chronic hepatitis, 25 liver cirrhosis, and 5 cirrhosis with hepatocellular carcinoma. Thirty patients were in inflammatory group, including 19 chronic cholecystitis, 6 acute cholecystitis, 3 cholecystitis with acute pancreatitis, 1 gangrenous cholecystitis, and 1 xanthogranulomatous cholecystitis. All patients underwent MDCT plain scan and contrastenhanced dualphase scanning of upper abdomen. ResultsIn hepatic disease group, 48 cases had evenly thickened gallbladder wall (96%) with mean thickness of (3.67±0.49) mm; 38 cases had clear gallbladder outlines (76%); 38 cases had gallbladder wall enhancement of various degree (76%); 14 cases had gallbladder bed edema and localized nondependant pericholecystic fluid collection (28%). In inflammatory cholecystitis group, 28 cases had obscuring gallbladder outlines (93%) ; 26 cases had gallbladder wall evenly thickened (87%), 4 cases showed unevenly thicked wall (13%), the mean thickness being (4.54±1.14) mm; 30 cases had inhomogenous enhancement of the gallbladder wall (100%); 9 cases had highattenuation bile (30%); 4 cases had dependant pericholecystic fluid collection (13%); 5 cases had transient enhancement of adjacent hepatic bed in arterial phase (17%); microabscess and gas in the gallbladder wall was observed in 1 case respectively. ConclusionMDCT can offer imaging findings useful for differentiating abnormal gallbladder changes caused by hepatic parenchymal diseases from those due to inflammatory cholecystitis.
【Abstract】ObjectiveBy using multidetector row spiral CT (MDCT) to investigate the CT imaging findings of gallbladder abnormalities caused by hepatic parenchymal diseases and those of inflammatory cholecystitis. MethodsCT and clinical data of 80 patients with gallbladder abnormalities were retrospectively reviewed. Fifty patients were in hepatic disease group, including 20 chronic hepatitis, 25 liver cirrhosis, and 5 cirrhosis with hepatocellular carcinoma. Thirty patients were in inflammatory group, including 19 chronic cholecystitis, 6 acute cholecystitis, 3 cholecystitis with acute pancreatitis, 1 gangrenous cholecystitis, and 1 xanthogranulomatous cholecystitis. All patients underwent MDCT plain scan and contrastenhanced dualphase scanning of upper abdomen. ResultsIn hepatic disease group, 48 cases had evenly thickened gallbladder wall (96%) with mean thickness of (3.67±0.49) mm; 38 cases had clear gallbladder outlines (76%); 38 cases had gallbladder wall enhancement of various degree (76%); 14 cases had gallbladder bed edema and localized nondependant pericholecystic fluid collection (28%). In inflammatory cholecystitis group, 28 cases had obscuring gallbladder outlines (93%) ; 26 cases had gallbladder wall evenly thickened (87%), 4 cases showed unevenly thicked wall (13%), the mean thickness being (4.54±1.14) mm; 30 cases had inhomogenous enhancement of the gallbladder wall (100%); 9 cases had highattenuation bile (30%); 4 cases had dependant pericholecystic fluid collection (13%); 5 cases had transient enhancement of adjacent hepatic bed in arterial phase (17%); microabscess and gas in the gallbladder wall was observed in 1 case respectively. ConclusionMDCT can offer imaging findings useful for differentiating abnormal gallbladder changes caused by hepatic parenchymal diseases from those due to inflammatory cholecystitis.
【Abstract】Objective To investigate the CT imaging features of metastatic hepatic adenocarcinomas from the digestive tract by using multidetectorrow helical CT (MDCT) with pathological correlation. Methods CT and clinical data of 36 patients with pathologically proven metastatic hepatic adenocarcinomas from the digestive tract were retrospectively reviewed. The primary tumors included 10 cases of gastric cancer, 1 duodenal cancer, 18 colonic carcinoma, 7 rectal cancer. All patients underwent MDCT plain scan and contrastenhanced dualphase scanning of upper or whole abdomen. The appearances of hepatic metastatic lesions on MDCT images at various enhancement phases were carefully observed. Results On plain CT scan 32 cases （88.9%） presented multiple nodules of low density at different sizes, 3 cases （8.3%） showed a single low-density nodule, and 1 case presented with a cystic mass. On contrast-enhanced scan, 4 cases (11.1%) showed faintly enhanced rim around the nodules on arterial phase; on portal venous phase 29 cases (80.6%) presented slight ringlike enhancement at the periphery of the nodule while the nodule core was markedly hypodense with intermediate soft tissue density area in between, giving rise to the typical appearance of “bull’seye” sign. Three cases (8.3%) showed no enhancement on either phase images. Conclusion The ring-like enhancement and the appearance of “bull’s-eye” on portal venous phase was characteristic CT features of metastatic hepatic adenocarcinoma from digestive tract.