title: Congenital absence of the ulna.
mesh_terms: D000293:Adolescent; D000328:Adult; D002675:Child, Preschool; D005260:Female; D006227:Hand Deformities, Acquired / Q000151:congenital; D006801:Humans; D007223:Infant; D008297:Male; D014457:Ulna / Q000002:abnormalities*