[Cancer of a solitary kidney and multiple paraneoplastic syndromes (arterial hypertension, polycythemia, hypercalcemia and limbic encephalopathy)].

In a case of cancer of a congenital solitary kidney with lung metastases four paraneoplastic syndromes accompanied the neoplasia: arterial hypertension, polycythaemia, hypercalcaemia and limbic encephalitis. The inaugural arterial hypertension had provided no clue, but polycythaemia led to the diagnosis. In the course of the disease neuropsychic disorders due to the limbic encephalitis and unrelated to the hypercalcaemia developed and made this particular case unusual, especially since only one similar case of renal cancer has been published. The literature available concerning the four neoplastic syndromes is reviewed.