“…vesical pheochromocytoma, in most cases an angiogra phy of the pelvis was performed. But even under premed ication of a-and (3-receptor blockers, instrumentation may lead to dangerous crises of blood pressure [26,29]. Being noninvasive methods, CT and sonography are of special importance [2,7,[32][33][34], Till now, a CT has been performed in 3 patients with pheochromocytoma of the urinary bladder [12,27,28], In 1 case [28] the tumor escaped the computed tomographical demonstration, while cystoscopically, a tumor measuring about 1.5 cm in diameter could be localized in the vault of the bladder.…”