Agenesis of the left hepatic lobe
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Agenesis of the left hepatic lobe is a rare variation in liver anatomy. It is clinically asymptomatic and discovered during imaging or surgery.
Radiographic features
- absence of the left hepatic lobe (left of the falciform ligament, Couinaud segments II and III)
- absence of left hepatic artery, left portal vein, and left hepatic biliary system
- possible presence of a few remnant buds/nodules of tissue adjacent to the falciform ligament 2
- possible compensatory hypertrophy of the right hepatic lobe and caudate lobe
Differential diagnosis
- hepatectomy (look for postsurgical change)
- severe atrophy of the left hepatic lobe: left lobe structures will still be present
-<li>absence of the left hepatic lobe (left of the <a title="Falciform ligament" href="/articles/falciform-ligament">falciform ligament</a>, <a title="Couinaud classification of hepatic segments" href="/articles/couinaud-classification-of-hepatic-segments">Couinaud</a> segments II and III)<ul><li>absence of <a title="Left hepatic artery" href="/articles/left-hepatic-artery">left hepatic artery</a>, <a title="Portal vein" href="/articles/portal-vein">left portal vein</a>, and left hepatic biliary system</li></ul>- +<li>absence of the left hepatic lobe (left of the <a href="/articles/falciform-ligament">falciform ligament</a>, <a href="/articles/couinaud-classification-of-hepatic-segments">Couinaud</a> segments II and III)<ul><li>absence of <a href="/articles/left-hepatic-artery">left hepatic artery</a>, <a href="/articles/portal-vein">left portal vein</a>, and left hepatic biliary system</li></ul>
Images Changes:
Image 1 CT (C+ CTPA) ( create )
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