Osteoidosteoma syn — Ovalocytosis syn
- osteoidosteoma syn. syndr. Bergstrand
- osteolysis spontanea syn. syndr. Gorham
- osteoma multiplex intermusculare syn. syndr. Munchmeyer
- osteomalacia chronica deformans hypertrophica syn. syndr. Paget
- osteomyelitis Garre syn. syndr. Garre
- osteomyelitis sicca syn. syndr. Garre
- osteomyeloreticulosis syn. syndr. Heuck-Assmann
- osteomyelosclerosis syn. syndr. Heuck-Assmann
- osteonecrosis pubica posttraumatica syn. syndr. Pierson
- osteopathia acidotica pseudorrhachitica syn. syndr. Fanconi-Albertini-Zellweger
- osteopathia Boeck syn. syndr. Perthes-Jungling
- osteopathia familiaris neuroendocrinica syn. syndr. Salvioli
- osteopathia hyperosteotica syn. syndr. Leri (I)
- osteopathia hyperosteotica (scleroticans) multiplex infantilis syn. syndr. Camurati-Engelmann
- osteopathia hypertrophicans toxica syn. syndr. Bamberger-(Pierre) Marie
- osteopathia neuralgica syn. syndr. Camera
- osteopathia patellae syn. syndr. Budinger-Lawen
- osteopathia patellae iuvenilis syn. syndr. Larsen-Johansson
- osteoperiosteitis ossificans toxica syn. syndr. Bamberger-(Pierre) Marie
- osteopetrosis familiaris syn. syndr. Albers-Schonberg
- osteophthisis syn. syndr. Gorham
- osteophytosis familiaris generalisata idiopathica syn. syndr. Fairbank
- osteophytosis universalis syn. syndr. Bamberger-(Pierre) Marie
- osteoporosis fetalis syn. syndr. Vrolik
- osteoporosis iuvenilis idiopathica hereditaria syn. syndr. Dent-Friedman
- osteopsathyrosis congenita syn. syndr. Vrolik
- osteopsathyrosis idiopathica tarda syn. syndr. Lobstein
- osteosclerosis congenita syn. syndr. Koszewski, syndr. Parrot (II)
- osteosclerosis congenita diffusa syn. syndr. Albers-Schonberg
- osteosclerosis hereditaria systematisata syn. syndr. Camurati-Engelmann
- osteosis acromegaloides syn. syndr. Uehlinger
- osteosis condensans ilii syn. syndr. Barsony-Polgar
- osteosis eburnisans monomelica syn. syndr. Leri (I)
- oticodynia syn. syndr. Meniere
- oticodynosis syn. syndr. Meniere
- ovalocytosis syn. syndr. Dresbach