A medical imaging technique that produces X-ray images of the bile ducts, usually after injection of contrast dye.
From 'cholang-' (bile duct: Greek 'chole' bile + 'angi' vessel) + '-graphy' (recording/imaging: Greek 'graphia' writing). The term literally means 'writing/imaging the bile ducts.'
Cholangiography is named as if the bile ducts are writing a story in contrast dye—a poetic way to describe how doctors let the body's own fluids reveal its secrets through imaging.
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