Medical Dictionary
hydronephrosis
noun hy·dro·ne·phro·sis \-ni-ˈfrō-səs\
plural hy·dro·ne·phro·ses \-ˌsēz\
Medical Definition of HYDRONEPHROSIS
: cystic distension of the kidney caused by the accumulation of urine in the renal pelvis as a result of obstruction to outflow and accompanied by atrophy of the kidney structure and cyst formation
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