[Papillary renal cell carcinoma: clinic and pathological study about 27 cases].

Background: Papillary renal cell carcinoma (PRCC) represent 10 to 15% of renal tumours in adults. They contain more than 75% of tubule-papillary structure and are divided histologically into two subtypes. The distinction between these two sub-types is essential because of different prognosis.