Presents with a triad of gait disorder, urinary urge incontinence, and increasing memory loss progressing to dementia. Gradual onset and worsening of symptoms. The gait disorder typically starts with subtle general imbalance/unsteadiness and progresses to wide-based short slow shuffling movements, falls (no LOC), leg weakness, and possibly complete immobility.
There are no other obvious neurological deficits other than sometimes abnormal Romberg test/plantar reflexes. No headache. Investigation is with CT or MRI and referral. Early diagnosis important as reduces chance of poor prognosis.
(Article from GP from years back that I found in my archives and thought worth recording.)