USMLE Q Bank Step 1- 213



A 55-year-old man has a long history of liver cirrhosis visits his physician with a new complaint. Recently he noticed abnormal lesion on his abdomen. His physician recognized these lesions as caput medusae.

Which veins are most likely involved in this case?

A- Azygos and hemiazygos veins

B- Esophageal venous plexus

C- Paraumbilical and epigastric veins

D- Superior, middle and inferior rectal veins

E- Splenic and external iliac veins




Caput medusae is formed by dilated veins seen on the abdomen of patients with liver cirrhosis due to portal hypertension. It is mainly caused by dilation of paracaval connections between paraumbilical veins and epigastric veins.

The correct answer is C



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