1. Image Challenge Q:
A 70-year-old woman presented to the neurology clinic with a 2-year history of gait disturbance, cognitive impairment, and urinary incontinence. What is the diagnosis?
1. Normal-pressure hydrocephalus
2. Alzheimer's disease
3. Parkinson's disease
4. Benign intracranial hypertension
5. Multiple system atrophy

2. Image Challenge Q:
A 70-year-old woman presented to the neurology clinic with a 2-year history of gait disturbance, cognitive impairment, and urinary incontinence. What is the diagnosis?
Answer:
Normal-pressure hydrocephalus
The correct answer is normal-pressure hydrocephalus. Normal-pressure hydrocephalus classically manifests with urinary incontinence, gait disturbance, and dementia. Magnetic resonance imaging studies demonstrate dilation of the ventricles due to accumulation of cerebrospinal fluid. Surgical shunting of cerebrospinal fluid is the primary treatment modality.