<P> 3D CT reconstruction showing a skull fracture in an infant </P> <P> While the findings of AHT are complex and many, they are often referred to as a "triad". </P> <P> SBS may be misdiagnosed, underdiagnosed, and overdiagnosed, and caregivers may lie or be unaware of the mechanism of injury . Commonly, there are no externally visible signs of the condition . Examination by an experienced ophthalmologist is often critical in diagnosing shaken baby syndrome, as particular forms of ocular bleeding are quite characteristic . Magnetic resonance imaging may also depict retinal bleeds; this may occasionally be useful if an ophthalmologist examination is delayed or unavailable . Conditions that must be ruled out include hydrocephalus, sudden infant death syndrome (SIDS), seizure disorders, and infectious or congenital diseases like meningitis and metabolic disorders . CT scanning and magnetic resonance imaging are used to diagnose the condition . Conditions that may accompany SBS include bone fractures, injury to the cervical spine (in the neck), retinal bleeding, cerebral bleed or atrophy, hydrocephalus, and papilledema (swelling of the optic disc). </P> <P> The terms non-accidental head injury or inflicted traumatic brain injury have been suggested instead of "SBS". </P>

When considering 'abusive head trauma' (aht) what is the classic triad of symptoms
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