Which pediatric-specific sign may be emphasized during a comprehensive pediatric neurological examination?

• A. Fontanelle Status in Infants
• B. Cranial Nerves
• C. Motor Tone and Bulk
• D. Sensory Function

Answer: (A)

In infants, the skull has soft spots called fontanelles that reflect brain status and hydration as the brain grows. Checking fontanelle status during a comprehensive pediatric neurological exam is especially useful because these signs are specific to young children. A bulging anterior fontanelle can indicate increased intracranial pressure from conditions like hydrocephalus, meningitis, or hemorrhage, while a sunken fontanelle can point to dehydration or systemic illness. Normal changes over the first months and years—such as gradual closure as the skull bones fuse—also provide important context for interpretation. While examining cranial nerves, muscle tone, and sensory function is important, those aspects are not unique to pediatrics and are relevant across ages, whereas fontanelle assessment is a hallmark of the pediatric exam.