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Medullary sponge kidney (MSK) is a rare disease, with a prevalence of 0.0002 – 0.0005%, characterized by cystic dilations of the collecting ducts. Patients with MSK have the propensity for recurrent formation of kidney stones, nephrocalcinosis and urinary tract infections (UTIs). Unfamiliar to many practitioners and commonly asymptomatic, MSK patients often remain undiagnosed.
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Jamshidian et al. (2018) studied this question.
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