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To the Editor:—
Certainly we can offer no solution to the problem of classifying urothelial papillomas. One cannot predict in which individuals other urothelial tumors will develop. In the case mentioned by Dr. Bergman, could not the vesical lesion which occurred five years after removal of a noninvasive ureteral papilloma have been a subsequent primary lesion?Concerning the urographic findings in ureteral tumors, we wish to emphasize that the pyelographic findings are often not specific. To make a preoperative diagnosis of ureteral tumors one should have a high index of suspicion and should invariably outline the entire ureter at the time of retrograde urography. The variety of urographic findings pointed out by Dr. Bergman would appear to add support to this proposition.Certainly the prognosis in ureteral tumors is guarded; however, this should not necessarily justify nephroureterectomy on an empiric basis in every case. In our group of patients with
Robards VL, Thompson IM. Ureteral Tumors. JAMA. 1964;189(2):165-166. doi:10.1001/jama.1964.03070020093032