Athletismus myxoedematosus syn — Ayun syn. syndr
- athletismus myxoedematosus syn. syndr. Debre-Semelaigne
- atonia-astasia syn. syndr. Foerster
- atresia foraminis Magendie syn. syndr. Dandy-Walker
- atrophia cutis idiopathica progressiva syn. syndr. Herxheimer
- atrophia Hoffmann syn. syndr. Werdnig-Hoffmann
- atrophia Leber syn. syndr. Leber (I)
- atrophia myelopathica syn. syndr. Duchenne-Aran
- atrophia musculorum Charcot-Marie syn. syndr. Charcot-Marie
- atrophia musculorum progressiva iuvenilis syn. syndr. Erb
- atrophia musculorum progressiva neurotica sive neuralis syn. syndr. Charcot-Marie
- atrophia musculorum spinalium progressiva syn. syndr. Duchenne-Aran
- atrophia musculorum Tooth syn. syndr. Charcot-Marie
- atrophia Pick syn. syndr. Pick (I)
- atrophia pulmonum idiopathica syn. syndr. Burke (II)
- atrophia spinalis progressiva infantilis syn. syndr. Werdnig-Hoffmann
- atrophia Sudeck syn. syndr. Sudeck
- atrophia thalami syn. syndr. Stern
- atrophia uteri puerperalis syn. syndr. Chiari-Frornmel
- atrophoderma idiopathica syn. syndr. Pasini-Pierini
- autismus Asperger syn. syndr. Kanner
- autismus infantilis syn. syndr. Kanner
- autismus Kanner syn. syndr. Kanner
- autismus primarius syn. syndr. Kanner
- avitaminosis Bi syn. syndr. Strachan-Scott
- ayun syn. syndr. Ainhum
