cystic disease of renal medulla

cys·tic dis·ease of re·nal me·dul·la

presence of small cysts in the renal medulla associated with anemia, sodium depletion, and chronic renal failure. It is of two types: fatal autosomal recessive or juvenile type (also called familial juvenile nephrophthisis), beginning at about age 10 with an average duration of 6-8 years; and autosomal dominant or adult type.