What distinguishes febrile seizures from epilepsy in children?

• A. Febrile seizures occur with fever in children aged 6 months to 5 years and are usually benign; epilepsy is defined as two or more unprovoked seizures.
• B. Febrile seizures occur without fever and are usually benign; epilepsy is defined by any single seizure.
• C. Febrile seizures require EEG to confirm; epilepsy does not require EEG.
• D. Febrile seizures are a type of epilepsy.

Answer: (A)

Febrile seizures are fever-related events that occur in young children, typically between about 6 months and 5 years, and they are usually benign in nature. Epilepsy, on the other hand, is defined by recurrent, unprovoked seizures—that is, seizures that occur without a concurrent fever or other provoking factor, with two or more such seizures being the classic threshold for the diagnosis. This combination of fever-associated onset in a young child and a single-seizure event points away from epilepsy, while recurrent, unprovoked seizures define epilepsy. An EEG is not routinely required to diagnose a febrile seizure, whereas epilepsy evaluation often involves EEG to characterize seizure types and guide management. Febrile seizures are not themselves a type of epilepsy.