Cystic Lesions Flashcards
Intrahepatic masses
Cause the following findings:
- displacement of hepatic vascular radicles
- external buldgeing of the liver capsule
- posterior shift of the vena cava
Extrahepatic mass
internal invagination or discontunity of the liver capsule
- formation of a triangular fat wedge
- anterioromedial shift of the IVC
- anterior displacement of the right kidney
Hepatic cyst
solitary, non-paracystic cyst of the liver
Cysts may be
Congenital or acquired, solitary or multiple
symptoms of a cyst
Asymptomatic
Benign cyst findings
well-demarcated, thin waled, anechoic with posterior enhancement
what may develop as cyst increases
Pain
if a cyst hemorrhages and becomes infected
Fever may occur
hepatic cysts occur more commonly in what gender
females
what do simple cysts infrequently contain
fine linear internal septa
what may be seen within the cyst wall
Calcification, which may cause shadowing
What is a congenital hepatic cyst
Usually incidental finding, solitary
what does a congenital cyst arise from
Developmental defects in the formation of bile ducts
how large may a congenital cyst be
tiny to as large as 20cm
where is a congenital cyst usually found
anterior undersurface, right lobe most often
