Okihiro syndrome due to 20q13 microdeletion

Not applicable

Okihiro syndrome due to a point mutation

Autosomal dominant

Okur-Chung neurodevelopmental syndrome

Autosomal dominant

Oligoarticular juvenile idiopathic arthritis

Multigenic/multifactorial

Childhood

Oligoastrocytic tumor

Oligoastrocytoma

Oligocone trichromacy

Autosomal dominant, Autosomal recessive

Adolescent, Adult, Childhood, Infancy

Oligodendroglial tumor

Multigenic/multifactorial, Not applicable

Adult

Oligodendroglioma

Not applicable

All ages

Oligodontia

Autosomal dominant, Autosomal recessive, X-linked recessive

Childhood

Oligomeganephronia

Multigenic/multifactorial

All ages

Oliver syndrome

Autosomal recessive

Infancy, Neonatal

Olivopontocerebellar atrophy-deafness syndrome

Autosomal recessive

Infancy, Neonatal

Ollier disease

Not applicable

Adolescent, Adult, Childhood

Omenn syndrome

Autosomal recessive

Infancy, Neonatal

Omodysplasia

Autosomal dominant, Autosomal recessive

Infancy, Neonatal

Omphalocele

Not applicable

Antenatal

Omphalocele syndrome, Shprintzen-Goldberg type

Neonatal

Omphalocele-diaphragmatic hernia-cardiovascular anomalies-radial ray defect syndrome

Antenatal, Neonatal

Omsk hemorrhagic fever

All ages

Onchocerciasis

Not applicable

All ages

Oncogenic osteomalacia

Not applicable

All ages

Onychocytic matricoma

Adolescent, Adult, Childhood, Elderly

Onychomatricoma

Unknown

All ages