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Multiple Choice

The triad "wet, wacky, wobbly" is characteristic of which condition?

The trio wet, wacky, wobbly is a classic presentation of Normal Pressure Hydrocephalus, a form of hydrocephalus where the brain’s ventricles enlarge without consistently elevated CSF pressure. The gait disturbance, described as a magnetic or shuffling walk that is hard to initiate, is usually the earliest and most prominent feature and is the “wobbly” part. Urinary symptoms come next, from urgency to incontinence—the “wet” element—reflecting frontal–subcortical circuit disruption. Cognitive changes range from slowing to dementia—the “wacky” aspect. Diagnostic clues include ventriculomegaly on imaging that is out of proportion to cortical atrophy (often with an Evans index >0.3) and a temporary improvement in gait after removing some CSF via a tap test or external drainage, which supports the diagnosis and guides treatment with CSF shunting. Other conditions like HIV-associated neurocognitive disorder, MSA, or Progressive Supranuclear Palsy have overlapping features but do not characteristically present with this specific triad.

The trio wet, wacky, wobbly is a classic presentation of Normal Pressure Hydrocephalus, a form of hydrocephalus where the brain’s ventricles enlarge without consistently elevated CSF pressure. The gait disturbance, described as a magnetic or shuffling walk that is hard to initiate, is usually the earliest and most prominent feature and is the “wobbly” part. Urinary symptoms come next, from urgency to incontinence—the “wet” element—reflecting frontal–subcortical circuit disruption. Cognitive changes range from slowing to dementia—the “wacky” aspect. Diagnostic clues include ventriculomegaly on imaging that is out of proportion to cortical atrophy (often with an Evans index >0.3) and a temporary improvement in gait after removing some CSF via a tap test or external drainage, which supports the diagnosis and guides treatment with CSF shunting. Other conditions like HIV-associated neurocognitive disorder, MSA, or Progressive Supranuclear Palsy have overlapping features but do not characteristically present with this specific triad.