Page kidney with constrictive perinephritis.

We describe a case of Page kidney following an infectious urinoma complicated by a pyelolithotomy. The most characteristic finding was the fact that this case resulted from constrictive perinephritis, not from any usual etiology such as perirenal hematoma. Knowledge of the patient's medical history and split venous renin measurements were helpful in making a diagnosis. She had refractory hypertension during conservative medical therapy. Finally, a nephrectomy improved her hypertension. The value of venous renin sampling for reaching a diagnosis, and the medical and surgical therapeutic options are discussed. This report also reviews all previously described cases of Page kidney without hematomas.