Umbilical-urachal sinus

Last revised by Matt A. Morgan on 25 May 2021

An umbilical-urachal sinus belongs to the spectrum of congenital urachal anomalies and represents a non-communicating dilatation of the urachus at the umbilical end.

Clinical presentation

Presentation is commoner in children and rare in adult.

Radiographic features

An umbilical-urachal sinus can manifest at ultrasound as a thickened tubular structure along the midline below the umbilicus.

Complications
  • infection, with possible abscess formation
  • concurrent occurrence of a tumor.

History and etymology

It is thought to have been first described by Cabriolus in 1550 4.

ADVERTISEMENT: Supporters see fewer/no ads

Cases and figures

  • Figure 1: umbilical-urachal sinus
    Drag here to reorder.
  • Case 1
    Drag here to reorder.
  • Case 2: inflamed umbilical-urachal sinus
    Drag here to reorder.
  • Case 3
    Drag here to reorder.
  • Case 4
    Drag here to reorder.
  • Updating… Please wait.

     Unable to process the form. Check for errors and try again.

     Thank you for updating your details.