White matter hyperintensities (WMH) may be associated with long-term white matter pathologies due to repetitive head impacts.
Why this matters
Repetitive head impacts from contact sports have been associated with an array of neuropathies, such as chronic traumatic encephalopathy (CTE) and white matter degeneration.
WMH on MRI has been associated with white matter neurodegeneration.
WMH may capture the effect of repetitive head impacts on white matter degeneration.