Recognition of congenital umbilical anomalies is important because of the potential seriousness of associated internal malformations. Congenital lesions of the umbilicus of special interest to the dermatologist arise from abnormalities in the development of two embryologic structures: the omphalomesenteric (vitelline) duct and the urachus. An understanding of the pathogenesis is essential to the proper treatment of these uncommon anomalies, the complications of which may at times be fatal. Embryologic development is reviewed, and cases illustrative of both alimentary and urinary tract lesions are presented.
NIX TE, YOUNG CJ. Congenital Umbilical Anomalies. Arch Dermatol. 1964;90(2):160–165. doi:10.1001/archderm.1964.01600020028005
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