Early detection of prune belly syndrome in utero by ultrasonography

Ritsuyo Kobata, Hirokazu Tsukahara, Motohiro Takeuchi, Chikahide Hori, Masahiro Hiraoka, Toshiyuki Uchida, Fumikazu Kotsuji, Yasuhiko Ito, Kenichiro Okada, Masakatsu Sudo

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A report is presented of a male infant with prune belly syndrome (PBS) in whom bladder enlargement was detected by ultrasound (US) as early as 13 weeks of gestation. Subsequent fetal US identified progressive urinary tract dilatation, ascites and oligohydramnios. At 22 weeks, the fetal bladder was drained under US guidance. A gradual resolution of oligohydramnios was detected on US performed after 26 weeks of gestation. Delivery by cesarean section was performed at 34 weeks of gestation. The newborn had typical features of PBS with a vesico-cutaneous fistula but did not show respiratory distress. Imaging studies showed hypoplastic left kidney, slightly dysplastic but functioning right kidney, megaureter, megacystis, vesicoureteral reflux and dilated prostatic urethra. The early detection of genitourinary system abnormalities and serial US suggest that a distal urethral obstruction may be the underlying mechanism of PBS. Spontaneous (or therapeutic) intra-uterine decompression of the bladder might ameliorate obstructive nephropathy and oligohydramnios, allowing adequate lung development.

Original languageEnglish
Pages (from-to)705-709
Number of pages5
JournalPediatrics International
Issue number6
Publication statusPublished - Dec 1997
Externally publishedYes


  • Prenatal diagnosis
  • Prune belly syndrome
  • Renal failure
  • Ultrasonography

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health


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