A familial hemiplegic migraine that is commonly associated with cerebellar degeneration and has_material_basis_in heterozygous mutation in CACNA1A on 19p13.
synonyms:
GARD:2638,
MHP1,
FHM1,
141500,
OMIM:141500,
familial hemiplegic migraine1 with progressive cerebellar ataxia