Fetal Pancake Kidney: Prenatal Diagnosis and Postnatal Follow-up

Sharon Perlman, Yael Borovitz, Sonya Bar-Adon, Benjamin Dekel, Reuven Achiron, Yinon Gilboa

Research output: Contribution to journalArticlepeer-review


Bilateral failure of the kidneys to ascend during embryonic life may lead to fusion of the two renal masses, resulting in a round mass known as pancake kidney. Reviewing the literature, we did not encounter any reports of prenatal diagnosis of pancake kidneys. We present 6 cases of a pancake kidney diagnosed prenatally. Extrarenal associated anomalies included an aberrant right subclavian artery, nonvisualization of the uterus, consistent with Mayer-Rokitansky-Küster-Hauser syndrome, and a sequence of early-onset growth restriction, hypospadias, and syndactyly, suspected as Smith-Lemli-Opitz syndrome. On postnatal follow-up, all infants had a normal renal outcome.

Original languageEnglish
Pages (from-to)1665-1668
Number of pages4
JournalJournal of Ultrasound in Medicine
Issue number8
StatePublished - 1 Aug 2020


  • congenital anomalies of the kidney and urinary tract, Mayer-Rokitansky-Küster-Hauser syndrome
  • pancake kidney
  • prenatal diagnosis
  • prenatal ultrasound


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