The verrucous carcinoma is an unusual shape of well differentiated squamous
cell carcinoma, first described at the ORL region; the kidney location is
rare; the risk factors are represented essentially by lithiasis and/or urin
ary infection; the clinical symptom is not specific. Diagnosis is facilitat
ed by radiological investigations and particularly excretory urogram/ultras
ound; certainly diagnosis is pathological. The nephro-ureterectomy with col
lar resection of the bladder is the choice treatment. We report two observa
tions and we clarify clinicopathological aspects of this type of carcinoma
and we discuss the prognosis. (C) 2001 Editions scientifiques et medicales
Elsevier SAS.