Prenatal Diagnosis of Caroli's Disease by Ultrasound and MRI Imaging

CD may be identified by fetal ultrasound through the characteristic arrangement of intrahepatic dilated bile ducts ("horn comb" sign). Fetal MRI is advantageous for detecting the C-DOT sign, which confirms the diagnosis of CD. In our experience, these findings tend to become apparent in the late second to early third trimester of pregnancy.