1. Eversion or turning inside out of the sac of a cystonephrosis as an aid in operating upon the renal end of the ureter and upon the partition walls between dilated calices Author(s): Fenger, Christian, 1840-1902 Publication: [Philadelphia : Lea Brothers & Co., 1899?] Subject(s): Urologic Surgical Procedures -- methodsHydronephrosis -- surgeryKidney -- surgeryUreter -- surgery