Central dot sign is seen in-: (A) Caroli's disease, (B) Primary sclerosing cholangitis, (C) Polycystic liver disease, (D) Liver hamartoma
Answer is A. 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