Umbilical-urachal sinus explained

Synonym:	Urachal sinus
Specialty:	urology

Umbilical-urachal sinus is a congenital disorder of the urinary bladder caused by failure of obliteration of proximal or distal part of the allantois, and the presentation of this anomaly is more common in children and rarer in adults.^{[1] [2] [3]}

It is thought have been first described by Cabriolus in 1550.^[4]

Complications

• Infection, with possible abscess formation.
• Concurrent occurrence of a tumour.

See also

• Urachus

References

1. Anomalies of the Distal Ureter, Bladder, and Urethra in Children: Embryologic, Radiologic, and Pathologic Features. Radiographics. 22. 5. 1139–1164. Berrocal T, López-pereira P, Arjonilla A et-al. 10.1148/radiographics.22.5.g02se101139. 12235344. 2002. Berrocal. Teresa. López-Pereira. Pedro. Arjonilla. Antonia. Gutiérrez. Julia. free.
2. Urachal remnant diseases: spectrum of CT and US findings. Radiographics. 21. 2. 451–461. Yu JS, Kim KW, Lee HJ et-al. 10.1148/radiographics.21.2.g01mr02451. 11259707. 2001. Yu. Jeong-Sik. Kim. Ki Whang. Lee. Hwa-Jin. Lee. Young-Jun. Yoon. Choon-Sik. Kim. Myung-Joon.
3. Simplified approach to umbilical remnant abnormalities.. Radiographics. 11. 1. 59–66. DiSantis DJ, Siegel MJ, Katz ME. 10.1148/radiographics.11.1.1996398. 1996398. 1991. Disantis. D. J.. Siegel. M. J.. Katz. M. E.. free.
4. Urachal sinus presenting with abscess formation. El Ammari JE, Ahallal Y, El Yazami Adli O et-al. 10.1148/radiographics.11.1.1996398. 1996398. free. RadioGraphics.