An old STI rears its head

The patient presented with co-ordination problems but denied high-risk sexual exposure
Brain MRI

When a 50-year-old man presented to doctors with trouble talking and walking for the past three months, they eventually discovered the cause was a rare, decades-old STI.

In addition to gait ataxia and cerebellar dysarthria, examination revealed the man also had uncontrolled eye movements and tremors.