Antenatal three-dimensional sonographic features of fetal biliary atresia.
We present antenatal three-dimensional (3D) sonographic features of fetal biliary atresia. A 38-year-old pregnant Japanese woman was referred to our ultrasound clinic because of a fetal intra-abdominal cyst at 19 weeks of gestation. Conventional two-dimensional (2D) sonography and 3D sonography with an inversion mode showed a round cyst with a tiny dip in the subhepatic area. At 34 weeks, conventional 2D sonography and 3D sonography with inversion and transparent X-ray modes clearly revealed a round to oval cyst connected with the gallbladder via the cystic duct. A diagnosis of choledochal cyst (type I) was suggested antenatally. However, the final diagnosis made by employing operative cholangiography during surgery was biliary atresia (type I cyst) at 25 days of life. To the best of our knowledge, this is the first report of biliary atresia employing antenatal 3D sonography with inversion and transparent X-ray modes.
Department of Perinatology and Gynecology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Masato
M
Mashima
Department of Perinatology and Gynecology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Hirokazu
H
Tanaka
Department of Obstetrics and Gynecology, Numoto Ladies Clinic, 4-8 Higashitamachi, Takamatsu, Kagawa, 760-0058, Japan.
Atsuo
A
Numoto
Department of Pediatric Surgery, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Hiroyuki
H
Kubo
Department of Pediatric Surgery, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Ryuichi
R
Shimono
Department of Pediatrics, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Takashi
T
Kusaka
Department of Pediatrics, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan.
Susumu
S
Itoh
Department of Perinatology and Gynecology, Kagawa University School of Medicine, 1750-1 Ikenobe, Miki, Kagawa, 761-0793, Japan. toshi28@med.kagawa-u.ac.jp.
Toshiyuki
T
Hata
3D ultrasound; Biliary atresia; Fetus; Inversion mode; Transparent X-ray mode