View larger version (86K):
[in this window]
[in a new window]
|
Figure 1. The urachus is an epithelial tube that connects the apex of the urinary bladder with the allantois in the fetus and is involved in forming the umbilical structures. The lumen of the urachus usually becomes obliterated during embryonic development. Congenital defects, however, may occur. An 83-year-old woman who had undergone a simple ligation of a patent urachus as a neonate but who had had intermittent urine leakage through the umbilicus thereafter had a patent urachus on T1-weighted magnetic resonance imaging. The striated structure was present between the bladder and the umbilicus and had a low signal . . . [Full Text of this Article] |
Previous
