Dubin-Johnson syndrome

Dubin–Johnson syndrome is a rare, autosomal recessive, benign disorder that causes an isolated increase of conjugated bilirubin in the serum. Classically, the condition causes a black liver due to the deposition of a pigment similar to melanin. [Source: Wikipedia ]

Synonyms
Black liver-jaundice syndrome
Hyperbilirubinemia II
Icterus-hepatic pigmentation syndrome
OrphaNet reference
Dubin-Johnson syndrome 
May Cause
Delayed scintigraphic visualization of gallbladder
Nonvisualization of gallbladder