| Health / Medical Topics |
Medullary Sponge Kidney
Definition 1
A developmental disorder of the kidney characterized by cystic dilatation of the medullary collecting ducts, resulting in a spongy gross appearance of the kidney. It may be asymptomatic or complicated by hematuria, infections, or renal stones. (NCI Thesaurus)
Definition 2
Cystic disease of the medullary portion of the renal pyramids; asymptomatic unless complicated by infection, calculi, or obstruction; should be distinguished from congenital polycystic disease of the kidneys. (NLM, Medical Subject Headings)
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