Ataxias (S.C.A.1,2,3,4,5,6,7 etc), Ataxia Telangiectasia, Fragile X premutation syndrome, Cerebellar Ataxia (with deafness, anosmia, absent corneals, nonreactive pupils,
[cmdg.org]
Neurological signs, the commonest of which is cerebellar ataxia, appear later, may or may not accompany the rash and are usually transient and completely reversible.
[ijdvl.com]
ataxia; those with diagnosed tryptophanuria Tyrosine Test Code: 902 Clinical Use: Diagnose tyrosinemia; monitor tyrosine levels after tyrosinemia diagnosis and in phenylketonuric
[questdiagnostics.com]