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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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Which of the following is the most common renal cystic disease in infants is ?
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The correct answer is  Unilateral renal dysplasia is a form of renal dysplasia (RD; see this term), a renal tract malformation in which the development of one kidney is abnormal and incomplete. Unilateral RD can be segmental, and of variable severity, with renal aplasia corresponding to extreme RD. Reference: GHAI Essential pediatrics, 8th edition