DIFFUSE LIVER CONDITIONS
The sonographic landmarks used to define this fissure are the left hepatic vein (LHV); the ascending branch of the left portal vein (LPV); and more inferiorly, the hyperechoic ligamentum teres (Fig. 7-7G-J). In patients with ascites, the externally located falciform ligament may be a ...
Abdominal ultrasonography typically demonstrates homogeneous hyperechoic hepatic parenchyma (fat being hyperechoic) and subjective hepatomegaly. Hyperechogenicity is judged by comparing hepatic parenchyma to falciform fat and to the spleen (liver is normally hypoechoic com...
Occasionally HBL may secrete human chorionic gonadotrophin.HBL derives from embryonic and fetal hepatocytes and usually presents as a large, well circumscribed mass, although multifocal or diffuse disease and hepatic vascula- ture invasion may occur.At ultrasound HBL are usually hyperechoic or he...
mildly to moderately elevated and the ratio of aspartate aminotransferase (AST)/ALT is often <1, but this ratio increases as the fibrosis advances. Mildly elevated serum ferritin is common in patients with NAFLD. Common alternative causes of hepatic steatosis, such as alcoholic liver disease, ...
17.4.2 Hemangioma Hemangioma is the most common benign liver tumor. On US, liver hemangioma appears circumscribed, well-defined, hyperechoic, and associated with distal acoustic enhance- ment. Small hemangiomas usually appear homogeneous, but larger hemangiomas (>4 cm) can show a heterogeneous ...
On ultrasound, they appear as small hyperechoic or hypoechoic lesions and can demonstrate ringing artifacts (comet tail appearance). 102 W. Schima and D.-M. Koh ab cd Fig. 7.8 Adenoma: inflammatory type. (a) T2-weighted TSE shows a large circumscribed mildly hyperintense mass in the ...