Monarch Disease Ontology identifier MONDO_0012063 (ulnar/fibula ray defect-brachydactyly syndrome) can be described as follows. Ulnar/fibula ray defect - brachydactyly syndrome is a very rare malformation syndrome characterized by ulnar hypoplasia associated with hypoplastic to absent fourth and/or fifth digits, fibular hypoplasia, short stature and facial dysmorphism. Also known as: Morava-Mehes syndrome.