Clinical anatomy in the context of portal hypertension.
Clinical anatomy in the context of portal hypertension.
Clinical anatomy in the context of portal hypertension.
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Portal Hypertension<br />
Etiology<br />
• Classification systems<br />
• Pres<strong>in</strong>usoidal, s<strong>in</strong>usoidal, posts<strong>in</strong>usoid.<br />
• Extrahepatic vs. <strong>in</strong>trahepatic<br />
• Suprahepatic, <strong>in</strong>trahepatic, <strong>in</strong>frahepatic<br />
• Suprahepatic (outflow obstruction)<br />
• Right-side heart failure, constrictive<br />
pericarditis, Budd-Chiari syndrome<br />
• Often <strong>portal</strong> <strong>hypertension</strong> is matched<br />
by systemic (caval) <strong>hypertension</strong>s<br />
• Intrahepatic (90% <strong>of</strong> cases)<br />
• Cirrhosis most common but o<strong>the</strong>rs too<br />
• Typical pathologic anatomical f<strong>in</strong>d<strong>in</strong>gs<br />
• Infrahepatic<br />
• Obstruction <strong>of</strong> extrahepatic <strong>portal</strong><br />
system<br />
• Portal (or splenic) v. thrombosis<br />
• Cavernomatous transformation <strong>of</strong> <strong>portal</strong><br />
ve<strong>in</strong><br />
• Tumor, <strong>in</strong>fection, compression<br />
• Typical pathologic anatomical f<strong>in</strong>d<strong>in</strong>gs<br />
from Netter 1957
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