[Diagnosis and therapy of single kidney cysts]

By means of observation of 191 own patients suffering from a symptomatic single renal cyst and a literature review, epidemiology, clinical presentation, diagnostic procedures and therapy are presented. The significance of ultrasonography and computerized tomography are emphasized. For single, symptom-free cysts besides regular ultrasonographic examinations no further therapy is necessary. In case of a required therapeutic procedure, an open resection of the cyst should be preferred to percutaneous a required therapeutic procedure, an further therapy is necessary. In case of a required therapeutic procedure, an open resection of the cyst should be preferred percutaneous approach.