Congenital Abnormality
patent urachus
Definitions related to persistent umbilical sinus:
  • (patent urachus) A congenital abnormality that results from the failure of the lumen of urachus to be obliterated. It presents with leakage of urine from the bladder through the umbilicus.
    NCI
    U.S. National Cancer Institute, 2021
  • (patent urachus) A persistent opening between the bladder and the umbilicus through the urachus.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
  • (patent urachus) Persistence of the urachal canal resulting in a canal between the bladder and the umbilicus.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
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