[Verrucous carcinoma of the kidney: report of 2 cases]

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 urinary infection; the clinical symptom is not specific. Diagnosis is facilitated by radiological investigations and particularly excretory urogram/ultrasound; certainly diagnosis is pathological. The nephro-ureterectomy with collar resection of the bladder is the choice treatment. We report two observations and we clarify clinicopathological aspects of this type of carcinoma and we discuss the prognosis.