May Be Caused by

 Common

Acute hepatitis

Bile leak

Cholangiocarcinoma

Cholangitis

Chronic hepatitis

Cirrhosis

Leukemia

Liver transplant

Lymphoma

Metastasis

Metastasis to porta hepatis

Peribiliary cysts

Portal hypertension

Portal vein thrombosis

Posttraumatic hemorrhage

Schistosomiasis

Sclerosing cholangitis

Vascular resuscitation

 Uncommon

Budd-Chiari syndrome