Re: McPhail et al.: Nephrolithiasis in medullary sponge kidney: Evaluation of clinical and metabolic features. (Urology 2012;79:277-281)

摘要

McPhail et al have recently reported that a discrete percentage of patients with medullary sponge kidney (MSK) do not present with renal stone-related symptoms (21% in their series) and do not form stones during follow-up. These patients come to clinical attention because of generalized abdominal pain, testicular pain, urinary tract infection, renal mass, and renal donor candidacy. We had observed the same in a larger MSK case population. In 25% of our patients with MSK, MSK was diagnosed because of symptoms unrelated to any stones (ie, hematuria, vague loin pain, or loin-burning sensation) or as an incidental observation during a diagnostic evaluation for other reasons.