Liver Part 1 P2 Flashcards
Developmental congenital anomalie is
Agenesis
Agensis of complete liver is
Incompatible with life
What normall occurs with partial agenesis
One lobe-compensatory hypertrophy normally occurs
2 position congenital anomalies of position
Situs inversus totalis
Congenital diaphragmatic hernia or omphalocele
Situs inversus totalis is
Liver is found in left hypochondrium
Congenitial diaphramatic hernia / omphalocele is
Liver may herniate into thorax or outside abdominal cavity
Benign hepatic neoplasms (7)
Granulomas Hamartomas Cysts Cavernous hemangioma FNH - focal nodular hyperplasia Adenomas Fatty tumors
Do liver granulomas have symptoms
No
liver granulomas appear as ______ within the _______
Calcification within the liver parenchyma
liver granulomas may be related to _____ or _____
Scarring
Underlying disorder such as an infection
Appearance of hamartomas
Small, focal, solid appearing, hypoechoic
Hamartomas have
6%
Hamartomas is often consufed with
Metastatic disease
Is hamartomas single or multiple
Both
Hamartomas known as
Benign malformations
Benign liver cysts are ____ filled space
Fluid
Benign liver cysts have ____ lining
Epithelial
Benign liver cysts are ______
Congenital
Benign liver cysts precise cause is
Unclear
Benign liver cysts is present at what age
Middle age
Benign liver cysts occur in ____% of the pop
2.5
Benign liver cysts may be ______ or become infected
Hemorrhage
Benign liver cysts appearance within
Internal echoes septations, thick walls, appear solid
Benign liver cysts with epithelial lining will ______ if drained
Recur
liver cysts seen in ____-____% of patients
57-74%
What is the most common benign tumor
Cavernous hemangioma
Cavernous hemangioma gender ratio
5:1 FOR FEMALES
Cavernous hemangioma has what type of blood flow
Low, appearing avascular on sonography
Normal appearance of Cavernous hemangioma
Homogenous and hyperechoic- tangle of tiny blood vessels
2nd most common seen tumor
Focal nodular hyperplasia - FNH
Focal nodular hyperplasia - FNH more commonly seen in
Women
Focal nodular hyperplasia - FNH has _______ influences including
Hormonal influences —- oral contraceptive and seen in child bearing years
Focal nodular hyperplasia - FNH exibits a ________ sometimes as a result of vascular malformation
Central scar
Focal nodular hyperplasia - FNH is seen as a _____ abnormality result of displacing vessels
Contour
Focal nodular hyperplasia - FNH has a _______ ,_______ pattern
Stellate pattern
Hepatic adenoma is less common than
Focal nodular hyperplasia - FNH
Hepatic adenoma is more common in _____ and is linked to
Women
Oral contraceptive use
Can Hepatic adenoma be symptomatic
Yes
What is the vasculature of Hepatic adenoma
Hypervascular
Hepatic adenoma bleeding within lesion causes
Pain
with Hepatic adenoma the is a risk of
Malignant degeneration
What is reccommended with Hepatic adenoma
Resection
Hepatic adenoma appear
Heterogenous due to presence of fat
Multiple feeding arteries can be seen supply adenoma from periphery
One third of cases has capsule — which distinguishes from FNH
Fatty tumors are common or rare?
Rare
Fatty tumors associated with
Renal angiomyolipomas
Fatty tumors appear as
Well defined echogenic mass
Fatty tumors are indistinguishable from
Hemangioma, metastasis or focal fat
Classic sign of fatty tumor is
Broken diaphragm
