Doppler US Findings of Vascular Complication after Liver Transplantation

Vascular complications after liver transplantation may involve the hepatic artery, and hepatic and portal veins. Arterial complications are common and significant vascular complications include thrombosis or stenosis, as well as pseudoaneurysms. Venous complications include thrombisis or stenosis of the inferior vena cana, or hepatic or portal vein. Since recent evidence has shown that emergent revascularization leads to improved graft salvage and patient survival with a relatively low rate of late biliary complications, accurate and pronpt di-agnosis of hepatic arterial complications is important. Doppler US is a relatively inexpensive, accurate, and non-invasive method of diagnosing the vascular complications which may arise from liver transplantation.

Pulsed Wave and Color Doppler US Findings of Transjugular Intrahepatic Portosystemic Shunts (TIPS)

The transjugular intrahepatic portosystemic shunt (TIPS) is an effective and relatively safe and widely accepted treatment for complications arising from portal hypertension. Shunt or hepatic vein stenosis and shunt occlusion are common short- and medium-term complications arising from the procedure, though if detected early, these conditions may be treated before the recurrence of gastrointestinal bleeding or ascites. Doppler US is a relatively inexpensive, accurate, and noninvasive method for the evaluation of shunt status.

Intrahepatic Cholesterol Stones: Report of Two Cases

Hepatolithiasis is rare in western countries, but is fairly common in East Asia, including Japan, China, and Taiwan. Calcium bilirubinate stones account for the majority of intrahepatic calculi, while intrahepatic cholesterol stones are very rare, the incidence being 0.37% of all gallstones. However, several investigators have recently reported an increased incidences of cholesterol gallstones in hepatolithiasis cases and have discussed the differing mechanisms for their formation in the intrahepatic biliary tree of patients with calcium bilirubinate stones and cholesterol stones. We report two cases of intrahepatic cholesterol stone, with emphasis on the radiologic findings, and review the literature.

The Imaging Findings of Small(< or =15mm) Portal Defects in the Liver on CT Arterial Portography: Evaluationwith CT Hepatic Arteriography and Lipiodol CT

PURPOSE: To assess the malignant potential of small(< or =15mm) portal defects seen on CT arterial portography,the findings of CT hepatic arteriography and lipiodol CT CT were reviewed. MATERIALS AND METHODS: In 91 patientswho underwent both CTAP and CTHA, small portal defects were re-viewed for frequency, multiplicity and location. Weprospectively evauluated changes in the size and enhance-ment pattern of malignant lesions on follow up CTaccording to density on CTHA, location, lipiodol deposits on lipiodol CT, and multiplicity. RESULTS: Among the 91patients, 102 small defects were defected in 42 patients(46%). Small portal defects were benign, malignant, and ofundetermined malignant potential in 77%, 20% and 3% of cases, respectively. Small portal defects that werehyperattenuated on CTHA, and lipiodol deposits on lipiodol CT, were malignant in 42% and 70% of cases,respectively. Location and multiplicity did not show statistically significant variation between benign andmalignant defects. CONCLUSION: Small portal defects are common and there is a high probability that portaldefects smaller than 15mm are benign, even in patients with a known hepatic mass and defect that washyperattenuated on CTHA. If a small defect showed lipiodol deposit on lipiodol CT, malignancy must be suspected.

A clinical study of hepatocellular carcinoma with major bile duct invasion / 대한내과학회지

No abstract available.

Normal CT anatomy of the calcaneus

Normal sectional anatomy of the calcaneus with multiplanar CT examination was studied in 5 volunteers as thebackground for interpretation of various abnormalities. Major 3 sectional anatomy including plantar, coronal,sagittal and additional tuberosity planes are described. With CT examination of the calcaneus, 1. More detailedanatomy of 3 facets of subtalar joint(anterior, middle, and posterior facet) can be well visualized. 2. Itsclinical applications in the tarsal trauma, tarsal coalition, subtalar infectin, degenerative arthritis, clubfoot, pes planus and tarsal tumor could provide much more informations, which not obtained by conventionalradiographic studies.

A retrospective comparison of CT with histopathologic findings in brain abscesses

This study was undertaken to examine the possibility of predicting the stage of brain abscess presoperatively,which may markedly influence on the decision how to manage the patients suffering from intracerebral abscesses. Atotal of 17 patients with brain abscesses, who were treated with surgery and diagnosed pathologically, wereretrospectively analyzied with particular attention to the correlation of CT and histopathologic findings. Wefound that preoperative CT findings could not provede any possibility on the decision of abscess staging.Therefore, we suggest that the sequential CT scans should be done in patients with susupectd brain abscess forevaluation of abscess staging.

Malignant fibrous histiocytoma

Malignant fibrous histiocytoma is a rare malignant tumor of histiocytic origin, arising from either bone, or soft tissue. Six cases of malignant fibrous histiocytoma are presented with emphasis on radiographic features. Five cases are of primary bone origin and one of soft tissue. Ill-defined osteolytic bone destruction with no sclerosis and with no periosteal reaction is the principal radiologic feature of the malignant fibrous histiocytoma of bone. Therefore, malignant fibrous histiocytoma should be considered in differential diagnosis of primary intraosseous or extraosseous malignancies.