Figure. Baylisascaris procyonis infection in the frontal cerebral lobe white matter. A) Larval nematode seen in multiple transverse sections, surrounded by mild chronic inflammation and reactive changes. Hematoxylin and eosin stain; original magnification ×10. B) Morphologic features of the larvae included maximum diameter of 65 μm; thin, striated cuticle (Cu); single paired lateral alae (Al); and paired excretory columns (EC) that were smaller in diameter than the central intestine (In). Hematoxylin and eosin stain; original magnification ×40.