Motor Neurone Disease (MND)
- 70-year-old patient presented with left-sided weakness and spasticity, and executive dysfunction.
- Excessive susceptibility artefact in the motor cortex (motor band sign) was most apparent around the right hand motor knob.
- There was no significant volume loss or corticospinal tract hyperintensity.
- A 45-year-old patient had a rapidly progressive tetraparesis over 6 months with upper motor signs and tongue fasiculations.
- MRI showed subtle hyperintensity within the corticospinal tracts and excessive susceptibility artefact in the motor cortex.
- 65-year-old patient presented with twitching arms and legs, muscle weakness and frequent falls.
- MRI showed marked hyperintensity within the corticospinal tracts and excessive susceptibility artefact in the motor cortex, representing the motor band sign.
- 60-year-old patient presenting with brisk reflexes, lower limb weakness and tongue fasiculations.
- MRI showed mild parietal volume loss near the vertex and marked susceptibility along the motor cortex that extended anteriorly into the paracentral lobule.