Descripción de diversos temas de anatomía humana, imagenología y diagnóstico por imágenes, apoyado por esquemas, dibujos y Gifs para su mejor compresión.

Hepatic Steatosis

• Diffuse fatty infiltration 
○ Increased echogenicity with liver more echogenic than kidney. 

○ Attenuation of US beam results in poor visualization of diaphragm. 

○ Poor visualization of hepatic and portal veins. 

• Focal fatty infiltration 

○ Hyperechoic nodule or multiple confluent hyperechoic lesions. 

○ No mass effect with vessels running undisplaced through lesion. 

○ Wedge-shaped/lobar/segmental distribution. 

• Focal fatty sparing 

○ Direct drainage of hepatic blood into systemic circulation 

○ Gallbladder bed: Drained by cystic vein 

○ Segment 4 or anterior to portal bifurcation: Drained by aberrant gastric vein 

○ No mass effect with undisplaced vessel