The authors describe nine cases of pseudo-ureterocele secondary to various obstructive lesions: bladder tumors, stones in the ureteral meatus, tuberculosis of the bladder. Certain radiological signs, such as asymmetrical swelling of the terminal ureter and the thick halo which surrounds the dilatation, can sometimes distinguish pseudo-ureteroceles from idiopathic ureteroceles, and associated radiological anomalies in the bladder are also of greater value for differentiation.