Liver Flashcards
Functions of liver
amino acids -> urea & glucose
stores glycogen from glucose
manu heparin
secrete bile
[..] broken down to produce bile pigment
RBC
2 types of bile
bilirubin - yellowish- orange
biliverdin [oxidized] - green
blood supply of liver
30% hepatic artery
70% portal vein
venous drain of liver
hepatic vein
largest solid organ
liver
covering of liver, shield the portal triad
Glisson’s capsule
T/F 1.6 kg M , 1.4 kg F liver
T
portal triad
portal vein
hepatic artery
CBD
liver divisions
left lobe - med and lat seg
right lobe - ant and pot seg
caudate lobe - smallest lobe
3 fossae of right lobe of liver
GB, portahepatic, IVC
liver ligament that connects posterior liver to diaphragm
coronary ligament
liver ligament that attaches liver to anterior abdominal wall
separate R and L sphrenic spaces
falciform ligament
liver ligament that connects lesser curvature of stomach to liver
gastrohepatic ligament
liver ligament that connects liver to proximal duodenum
hepatoduodenal ligament
liver ligament that connects liver to body wall
triangular ligament
liver ligament lies within the falciform ligament
“fetal umbilical vein”
ligamentum teres
liver spaces
morrison pouch
subhepatic pouch
subphrenic pouch
pouch located lateral to R lobe anterior to R kidney
Morison Pouch
space located b/w inferior edge of R lobe and ant to R kidney
subhepatic space
space located b/w diaphragm and superior border of liver
subphrenic space
T/F Liver is an intraperitoneal organ
T
lobe inferior to diaphragm
left lobe
lobe anterior to R kidney
right lobe
liver abdominal location
right hypochondriac region, midclavicular line
extension of R lobe INFERIOR and ant to lower pole of R kidney
Reidel’s Lobe
hepatomegaly length
> 18 cm
liver sono app
homogenous moderately echog
smooth parenchyma
blood vessels -anechoic
liver echog in relation to:
kidney
spleen
> kidney
<spleen
Liver Survey
longit
axial
non specific reaction t hepatocyte injury, obesity, alcohol abuse, diabetes, and drugs
Fatty Disease (diffuse hd)
types of fatty disease
diffuse fatty liver - entire
focal fatty liver- lobar/segmental
focal fatty sparing - no pattern
hepatomegaly - liver enlargement
causes:
[..]
- vascular congestion - CHD
- infection (Hepa)
- tumors
uts findings of hepatomegaly
- length of R lobe
- rounding of L lobe hepatic edge
- liver edge extending to pelvic bone
normal in thin females, extension of R lobe up to iliac crest
Reidel’s Lobe
Hepa Types
A - fecal/oral
B - sexual/blood
C - blood
D - same w/ B
E - water borne/oral
G - blood
UTS finding of acute hepatitis
“starry sky”
UTS findings of chronic hepatitis
normal until cirrhosis develops
decrease parenchymal echog
increased echoes in portal triad
end stage liver disease
final common pathway of liver injury
Cirrhosis
MC Causes of cirrhosis
alcohol abuse
viral hepatitis B and C
parenchyma and architecture is destroyed irregularly defined
cirrhosis
Passive Hepatice congestion is seen in the ff conditions:
constructive pericarditis
pulmonary HPN
CHF congestive heart failure
UTS Findings: carvernous hemangiomas
- hyper or echo nodular lesions
- vascular lesion that does not change size over time
CAUSES of Abscess
- complications from biliary tract infection
- sepsis
- trauma
UTS Findings Abscess
- thick walled, irreg
- hypo then ane [lysis]
- air is common
blood from abdominal injuries
liver hematoma
UTS Findings: liver hematoma
- variable: age and evol of hemat
- fresh clots - echog
- septations common
Caused by Ca2+ deposits
hepatic calcifications
CAUSES of hepatic calcifications
- granulomatous disease
- cavernous hemangiomas
- metastasis
primary sites of liver metastasis
stage IV
stomach, liver, breast, colon, pancreas
[2] malignant liver lesions
hepatocellular carcinoma
hepatic metastasis