title: Prenatal diagnosis of enterolithiasis at 18 weeks: multiple foci of intraluminal calcified meconium within echogenic bowel.
abstract: Enterolithiasis is an uncommon finding of a dilated hyperechogenic bowel with multiple ball-like echogenic structures at a routine prenatal check-up using ultrasonography. We here report a case of prenatally diagnosed enterolithiasis at 18 weeks of gestation, showing multiple hyperechogenic foci rolling within the bowel fluid after peristalsis. The size of the dilated bowel gradually increased during pregnancy. Magnetic resonance image demonstrated the dilated lower bowel with blind-ending rectum. A postnatal contrast medium study with retrograde urethrography revealed a middle imperforate anus and a rectourethral fistula. A careful examination, even before 20 weeks of gestation, is extremely useful in demonstrating intraluminal coarse calcifications within an echogenic bowel.
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
authors.forename: Arihiro
authors.initials: A
authors.lastname: Shiozaki
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Yoneda
authors.affiliation: Department of Obstetrics and Gynecology, Saiseikai Takaoka Hospital, 387-1 Futazuka, Takaoka, 933-8525, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Iizuka
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
authors.forename: Tae
authors.initials: T
authors.lastname: Kusabiraki
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
authors.forename: Masami
authors.initials: M
authors.lastname: Ito
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
authors.forename: Mika
authors.initials: M
authors.lastname: Ito
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan.
authors.forename: Noriko
authors.initials: N
authors.lastname: Yoneda
authors.affiliation: Department of Obstetrics and Gynecology, Saiseikai Takaoka Hospital, 387-1 Futazuka, Takaoka, 933-8525, Japan.
authors.forename: Hideo
authors.initials: H
authors.lastname: Yoshimoto
authors.affiliation: Department of Obstetrics and Gynecology, University of Toyama, 2630 Sugitani, Toyama, 930-0194, Japan. s30saito@med.u-toyama.ac.jp.
authors.forename: Shigeru
authors.initials: S
authors.lastname: Saito
mesh_terms: D000328:Adult; D002114:Calcinosis / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007410:Intestinal Diseases / Q000601:surgery*; D008470:Meconium / Q000000981:diagnostic imaging*; D011247:Pregnancy; D011262:Pregnancy Trimester, Second; D016216:Ultrasonography, Prenatal
keywords: Echogenic bowel; Enterolithiasis; Imperforate anus; Intraluminal calcification; Rectourethral fistula