suprasylvian

su·pra·syl·vi·an

(sū'pră-sil'vē-ăn),
Above the fissure of Sylvius or lateral sulcus.

suprasylvian

(soo″pră-sĭl′vē-ăn)
Located above the sylvian fissure of the brain.
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References in periodicals archive ?
In their study, propagation of the seizure/auras to the suprasylvian area were accompanied by salivation, eye deviation and clonic facial contractions.