renal dysplasia, bilateral (MONDO_0019645, a Monarch Disease Ontology term) can be described as follows. Bilateral renal dysplasia is a form of renal dysplasia (RD), a renal tract malformation in which the development of both kidneys is abnormal and incomplete. Bilateral RD can be segmental, and of variable severity, with renal aplasia corresponding to extreme RD. Also known as: bilateral renal dysplasia.