Aspiratio bronchopulmonalis obstetrica syn — Athetosis idiopathica syn
- aspiratio bronchopulmonalis obstetrica syn. syndr. Mendelson
- atrophia bulborum hereditaria syn. syndr. Norrie-Warburg
- atrophia cerebralis spongiformis syn. syndr. Nevin
- atrophia musculorum neurotica syn. syndr. Dejerine-Sottas
- atrophia olivo-ponto-cerebellaris syn. syndr. Dejerine-Thomas
- arthrophthalmopathia progressiva hereditaria syn. syndr. Stickler
- astasia-abasia syn. syndr. Blocq
- asthenia crurum dolorosa syn. syndr. Wittmaack-Ekbom
- asthenia crurum paraesthetica syn. syndr. Wittmaack-Ekbom
- asthenia Stiller syn. syndr. Stiller
- asthenia universalis congenita syn. syndr. Stiller
- asthenpcoria syn. sympt. Arroyo
- asymbolia dolorosa syn. syndr. Schilder-Stengl
- asystolia syn. syndr. Beau
- ataxia acuta syn. syndr. Westphal-Leyden
- ataxia cerebellaris, syn syndr. Luciani
- ataxia cerebellaris acuta syn. syndr. Zappert
- ataxia cerebellaris hereditaria syn. syndr. (Pierre) Marie (II)
- ataxia Friedreich syn. syndr. Friedreich (I)
- ataxia hereditaria syn. syndr. Sanger-Brown; syndr. Friedreich (I)
- ataxia Leyden syn. syndr. Westphal-Leyden
- ataxia locomotorica syn. syndr. Duchenne (I)
- ataxia muscularis syn. syndr. Thomsen
- ataxia spinocerebellaris syn. syndr. (Pierre) Marie (II)
- ataxia teleangiectatica, syn., syndr. Louis-Bar
- ataxia vasomotorica syn. syndr. Curtius (II)
- ataxia Westphal syn. syndr. Westphal-Leyden
- ateliosis, syn. syndr. Lorain
- athetosis duplex syn. syndr. Hammond; syndr. (C) Vogt
- athetosis idiopathica syn. syndr. Hammond
