What condition is caused by the absence of blood supply to the gallbladder?

Gangrene of the gallbladder is indeed the condition that results from an absence of blood supply to the gallbladder. This usually occurs due to ischemia, which can be caused by conditions such as gallstones that block the cystic artery, leading to reduced blood flow. When the gallbladder tissue does not receive adequate blood supply, it can lead to necrosis and ultimately gangrene.

Recognizing the absence of perfusion is crucial because it can lead to severe complications such as perforation or systemic infection. Diagnosis often involves imaging techniques like ultrasound, where findings can show gallbladder wall thickening and the presence of gas within the wall, which are indicators of gangrene.

In contrast, the other options refer to different pathologies: Caroli's disease involves cystic dilation of the intrahepatic bile ducts, cholangitis is an infection of the bile duct system, and adenoma represents a benign neoplasm that arises from epithelial tissue. None of these conditions are directly associated with a lack of blood flow to the gallbladder itself.