n. surgical reconstruction of the ureter using a segment of bowel or a tube of bladder (see Boari flap). This is necessary if a segment of ureter is damaged by disease or injury.
a tube of bladder tissue constructed to replace the lower third of the ureter when this has been injured or surgically excised because of the presence of a tumour or stricture. See also ureteroplasty. [A. Boari (19th century), Italian surgeon]... boari flap
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