RESUMO
This paper describes the radiological features in five biopsy-confirmed cases of neurosarcoidosis. The imaging appearance of neurosarcoidosis is highly variable, making the diagnosis difficult on the basis of intracranial images alone. However, if there is evidence of spread along the pia mater, and meningeal mass formation with a lower intensity in the central area and higher intensity in the peripheral area on T2-weighted and FLAIR images, neurosarcoidosis can be considered.
RESUMO
Transcatheter arterial chemoembolisation for hepatocellular carcinoma is widely carried out not only through the hepatic artery but also through the extrahepatic collateral pathways. Anatomically, there are many anastomoses between the hepatic artery and the extrahepatic collateral as well as among the extrahepatic collaterals. However, these anastomoses may not be shown on angiography because the anastomosing branches are too small. These anastomoses may not only interfere with effective control of hepatocellular carcinoma by transcatheter arterial chemoembolisation but also cause unexpected procedure-related complications. Therefore, radiologists should have sufficient knowledge of these underlying anastomoses. In this report, we present our angiographic images.
