urinoma(redirected from urinary cyst)
A collection of extravasated urine.
Synonym(s): urinary cyst
urinomaPediatric urology A tumor-like urine-filled cyst seen in the renal capsule of children, which is 2º to congenital urethral obstruction, in which urine extravasates into subcapsular or perirenal spaces via ruptured calyceal fornices.
A cystic collection of extravasated urine.