A rare hereditary patellar dysostosis characterized by nail hypoplasia or aplasia, aplastic or hypoplastic patellae, elbow dysplasia, and the presence of iliac horns as well as renal and ocular anomalies. The disease is Monarch Disease Ontology identifier MONDO_0008061 (nail-patella syndrome). Also known as: Fong disease, NPS 1, NPS1, Nail Patella Syndrome, Turner-Kieser syndrome, Turner-Kiser syndrome, hereditary Osteo-onychodysplasia, hereditary onychoostedysplasia.