RT Journal Article SR Electronic T1 Hereditary nonprogressive athetotic hemiplegia JF Neurology JO Neurology FD Lippincott Williams & Wilkins SP 849 OP 849 DO 10.1212/WNL.27.9.849 VO 27 IS 9 A1 FLOYD HAAR A1 PAUL DYKEN YR 1977 UL http://n.neurology.org/content/27/9/849.abstract AB A family with four affected members showed a stereotyped unilateral neurologic deficit. The disorder was characterized in each member by congenital left hemiparesis, with subsequent development of left hemihypoplasia and athetoid posturing of the left hand. Although the proband was initially considered a “cerebral palsy” victim, the autosomal dominant pattern and the stereotyped clinical features in all affected family members suggest a hereditary process. Hereditary factors may be an uncommon cause of static unilateral neurologic motor defects.