A 4-year-old girl is referred to a pediatric neurologist for evaluation of new-onset generalized tonic-clonic seizures. Her father mentions that she has also had sudden episodes of spontaneous, unexplained, loud laughter for the past year; these episodes now occur almost daily. Neurologic examination is unremarkable. Magnetic resonance imaging (MRI) reveals the findings seen here.
Which of the following clinical features is commonly associated with this patient’s condition? Learn more about this case, take the quiz, and join the conversation on Figure 1.
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Learn more about this case, and join the conversation on Figure 1.