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What is Central dot sign is seen in- and explain in detail?
Ans. is 'a' i.e., Caroli's diseaseCentral Dot sign* Central dot sign refers to tiny dots with strong contrast enhancement of portal vein within dilated hepatic bile ducts on CT.* Central dot sign is seen in: -i) Caroli's disease (me. cause)ii) Obstructive jaundiceiii) Prebiliary cystiv) Periportal lymphedema