title: Malignant mesodermal (mesenchymal) tumors of bladder.
abstract: Malignant mesodermal tumors originating in the bladder are rare. Only a few cases could be found in large series of autopsies or in gathered series of primary retroperitoneal space tumors. Sarcomas originating in the bladder wall grow rapidly and usually infiltrate into neighboring tissues. Two cass of such rare tumors are presented. The polar discrepancy between the clinical situation and the histopathologic findings are emphasized. Therapeutic outlines for these rare cases are suggested.
mesh_terms: D005354:Fibrosarcoma / Q000175:diagnosis*; D006801:Humans; D007890:Leiomyosarcoma / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*