Actinic lichen planus

All ages

Actinic prurigo

Multigenic/multifactorial, Not applicable

Childhood

Actinomycosis

Not applicable

All ages

Actinomyopathy-associated syndromic thrombocytopenia

Autosomal dominant

Action myoclonus-renal failure syndrome

Autosomal recessive

Adolescent, Adult

Activated PI3K-delta syndrome 1

Autosomal dominant

Activated PI3K-delta syndrome 2

Autosomal dominant

Acute ackee fruit intoxication

Not applicable

All ages

Acute annular outer retinopathy

Not applicable

Adult

Acute basophilic leukemia

All ages

Acute disseminated encephalomyelitis

Not applicable

All ages

Acute encephalopathy with biphasic seizures and late reduced diffusion

Infancy, Neonatal

Acute erythroid leukemia

Not applicable

Adolescent, Adult, Childhood, Elderly

Acute fatty liver of pregnancy

Multigenic/multifactorial

Adult

Acute flaccid myelitis

Adolescent, Adult, Childhood, Infancy

Acute generalized exanthematous pustulosis

Multigenic/multifactorial, Not applicable

All ages

Acute idiopathic maculopathy

Not applicable

Acute infantile liver failure due to synthesis defect of mtDNA-encoded proteins

Autosomal recessive

Infancy, Neonatal

Acute infantile liver failure-cerebellar ataxia-peripheral sensory motor neuropathy syndrome

Autosomal recessive

Infancy

Acute infantile liver failure-multisystemic involvement syndrome

Autosomal recessive

Infancy, Neonatal

Acute inflammatory demyelinating polyradiculoneuropathy

Multigenic/multifactorial, Not applicable

All ages

Acute intermittent porphyria

Autosomal dominant

Adolescent, Adult

Acute interstitial pneumonia

Unknown

Adult

Acute macular neuroretinopathy

Adolescent, Adult