Table 3. Features that assist in distinguishing Malan syndrome patients from those with Sotos syndrome.^{12, 13}.

	Malan syndrome	Sotos syndrome
Median height (SD)	+2.0	>+2.5
Median head circumference (SD)	+2.3	>+2.5
Pectus excavatum	40%	<15%
Strabismus	65%	<15%
Ocular nerve hypoplasia/pallor	25%	<15%
Cerebellar ataxia, hemiplegic migraine	At risk if CACNA1A deleted	−

Abbreviation: SD, standard deviations above the mean.