ABSTRACT
Biliary cast syndrome is an unusual complication in patients who have previously undergone liver transplantation. It occurs in approximately 5%–18% of such patients. Rare cases of biliary cast syndrome in patients without liver transplants have also been reported. The pathogenesis of biliary cast has not been clearly identified, although etiologic factors including post-transplant bile duct damage, ischemia, biliary infection, and presence of a post-operative biliary drainage tube have been proposed. Here we present a case of biliary cast that developed in a 49-year-old male who underwent a non-liver surgery after endoscopic and percutaneous management of common bile duct stone.
ABSTRACT
Purpose@#The purpose of this study was to evaluate the usefulness of multiphasic CT and 18 F-fluorodeoxyglucose (FDG) PET/CT for the differentiation of combined hepatocellular carcinomacholangiocarcinoma (cHCC-CCA) from hepatocellular carcinoma (HCC). @*Materials and Methods@#From January 2007 to April 2016, 93 patients with pathologically confirmed HCC (n = 84) or cHCC-CCA (n = 9) underwent CT and PET/CT imaging. Contrast enhancement patterns were divided into three types based on the attenuation of the surrounding liver parenchyma: type I (early arterial enhancement with delayed washout), type II (early arterial enhancement without delayed washout), and type III (early hypovascular, infiltrative appearance, or peripheral rim enhancement). @*Results@#cHCC-CCAs (89%) had a higher PET/CT positive rate than did HCCs (61%), but the PET/ CT positive rate did not differ significantly (p = 0.095). Among the 19 cases of the type II enhancement pattern, 3 (21%) of 14 HCCs and 4 (80%) of 5 cHCC-CCAs were PET/CT positive. cHCC-CCAs had a significantly higher PET/CT positive rate (p = 0.020) in the type II enhancement pattern. @*Conclusion@#The PET/CT positive rate of cHCC-CCA was significantly higher than that of HCC in lesions with a type II enhancement pattern. The 18 F-FDG PET/CT can be useful for the differentiation of cHCCCCA from HCC in lesions with a type II enhancement pattern on multiphasic CT.
ABSTRACT
Purpose@#The purpose of this study was to evaluate the usefulness of multiphasic CT and 18 F-fluorodeoxyglucose (FDG) PET/CT for the differentiation of combined hepatocellular carcinomacholangiocarcinoma (cHCC-CCA) from hepatocellular carcinoma (HCC). @*Materials and Methods@#From January 2007 to April 2016, 93 patients with pathologically confirmed HCC (n = 84) or cHCC-CCA (n = 9) underwent CT and PET/CT imaging. Contrast enhancement patterns were divided into three types based on the attenuation of the surrounding liver parenchyma: type I (early arterial enhancement with delayed washout), type II (early arterial enhancement without delayed washout), and type III (early hypovascular, infiltrative appearance, or peripheral rim enhancement). @*Results@#cHCC-CCAs (89%) had a higher PET/CT positive rate than did HCCs (61%), but the PET/ CT positive rate did not differ significantly (p = 0.095). Among the 19 cases of the type II enhancement pattern, 3 (21%) of 14 HCCs and 4 (80%) of 5 cHCC-CCAs were PET/CT positive. cHCC-CCAs had a significantly higher PET/CT positive rate (p = 0.020) in the type II enhancement pattern. @*Conclusion@#The PET/CT positive rate of cHCC-CCA was significantly higher than that of HCC in lesions with a type II enhancement pattern. The 18 F-FDG PET/CT can be useful for the differentiation of cHCCCCA from HCC in lesions with a type II enhancement pattern on multiphasic CT.
ABSTRACT
Variations in the popliteal artery and its tibial branches are common and have assumed greater importance with the technological advances that have made below-knee interventional revascularization feasible. The authors report a rare anatomic variant of popliteal artery agenesis, describing the CT angiographic findings with emphasis on the differential point from the occlusive disease and reviewing the embryologic development of the lower extremity vasculature.
ABSTRACT
A twenty year old male patient was exposed on his right temporal portion of head to 22,000 volt alternating electric current on December 12, 1978. He lost consciousness for about three days. He sustained second and third degree burn on exposed site and right lower extremity. Right lower leg was amputated months later at orthopedic deparment. And diminution of vision began to be felt on April 1979. So he visited to our ophthalmic O.P.D. on June 11, 1979. On the first ocular examination, the visual acuity of both eyes was similar -Hand Movement- and the intraocular pressure of right was 14.6 mmHg and that of the left was 17.3 mmHg. And light projection and color perception of both eyes were good. There were multiple round punctate opacities in anterior subcapsular region and total opacification of lens cortex were also noted in both eyes by slit lamp examination. On June 12, 1979, intracapsular lens cryoextraction of right eye was done with Zonolysin(R) application and five days later left eye was operated by the same procedure. Corrected visual acuity of both eyes was 20/20 without significant complication.