Aggressive angiomyxoma is a rare, benign but locally aggressive mesenchymal
neoplasm. We report the sonographic findings in a case of histologically p
roven aggressive angiomyxoma of the bladder. Sonography revealed a solid po
lypoid mass 2 cm in diameter with sharply demarcated borders, a heterogeneo
us echotexture, and a slightly hyperechoic rim. (C) 1999 John Wiley & Sons,
Inc.