MIRA3004 Lecture 4: Hepatobiliary system pathology 3

• School: Curtin University
• Department: Medical Imaging, Radiology & Radiography
• Course: MIRA3004
• Professor: Colleen Bennett

Document Summary

Composed of multiple vascular channels lined by endothelial cells. In 80% of hemangiomas have centripetal opacification pattern on delayed ct: the periphery of the lesion enhances during the arterial phase, most signal in portal phase and the centre fills in a delayed phase. It may not enhance due to necrosis in large hemangioma. May be solitary, multifocal or diffusely infiltrating. Ct is preferable imaging modality: after iv c+ is usually dense, diffuse and no uniform, tends to. Larger hcc lesions typically have a mosaic appearance due to haemorrhage and fibrosis be solitary mass (different compared to metastases) Hcc is silent tumor, mainly in patients without cirrhosis or hepatitis c. Later, it tends to be very large with a mosaic pattern, a capsule, haemorrhage, necrosis and fat evolution. Hcc becomes isodense or hypodense compared to liver in the portal venous phase due to fast wash-out. Ct iv contrast all phases are done.