Every Duel you missed
Today's Duel is free. Plus opens every one before it: five quick rounds each, choosing the better fit between two diagnoses and the detail that settles it.
Round 1 of 5
A 74-year-old retired teacher has shown a slow, steadily worsening decline in memory, planning, and visuospatial skill over the past two and a half years, with striking day-to-day swings in alertness that his wife describes as "here one hour, absent the next," plus recurrent detailed visions of small children sitting in the living room. Stiffness, small shuffling steps, and a resting tremor appeared about a year after the cognitive changes began; blood work, urinalysis, imaging for stroke, and a full medication review were all unremarkable, with no acute illness or new drug exposure.
Which fits better?