↓ Figure 1. Timeline showing notable events throughout patient’s lifetime (bottom). Stable MRI findings at age 3 years (left) and 18 years (right) show stable gangliocytoma and patent fourth ventricle. EEG during slow-wave sleep at age 10 years (top middle) shows near-continuous spike–wave, and at age 21 years (bottom middle) shows significantly reduced spike–wave frequency in posterior left leads. LDD: Lhermitte-Duclos disease; NF-1: neurofibromatosis type 1; MRI: magnetic resonance imaging; EEG: electroencephalogram; INO: internuclear ophthalmoplegia; OSA: obstructive sleep apnea; GTCs: generalized tonic–clonic seizures; PE: physical examination.
