Pyelocalyceal obstruction due to a renal cyst.
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D006869:Hydronephrosis / Q000209:etiology* / Q000601:surgery; D052177:Kidney Diseases, Cystic / Q000150:complications*; D008297:Male; D011013:Pneumonectomy