Striatopallidal fibres

The striatopallidal fibres, also Wilson's pencils,^[1][2] pencil fibres of Wilson,^[3] and pencils of Wilson, are prominent myelinated fibres that connect the striatum to the globus pallidus.

Micrograph of the putamen (top-right of image) and external globus pallidus (bottom-left of image) showing the striatopallidal fibres (blue, diagonal, linear structures). H&E-LFB stain.

Their distinctive appearance allows the putamen to be identified on light microscopy.

See also

• Lentiform nucleus