Hepatic system and spleen
Hepatic hematoma
Highly irregular and poorly defined margin
variable, mixed pattern echogenic and echo-free omponents
appearance varies with its age
Acute parenchymal hemorrhage is an- or hypoechoic until clot.
Hepatic cysts
thin and well-defined wall
echo free cavity
sharp distal border
distal acoustic enhance
Hepatic abscess
an-, hypo-, hyper- and mixed pattern
dog usually have a centralized anechoic to hypoechoic region with an irregular, poorly defined hyperechic margin
Hepatic necrosis
hypoechoic lesions
Multifocal or diffuse pattern
Nodular hyperplasia
Usually hypoechoic nodules pattern
Hepatic neoplasia
Focal or multifocal hypoechoic or mixed lesions