Introduction Epithelial structures are scarce in the normal central nervous system (CNS). Only the choroid plexus ( Fig. 16.1A ) and the pituitary gland's anterior and intermediate lobes contain true epithelial cells. The latter are derived from Rathke pouch epithelium…
Intraoperative consultation is unquestionably one of the most important and often most challenging tasks for the surgical pathologist. Of all the organ systems, neurosurgical specimens appear to be particularly problematic. Each surgical specimen and clinical setting offers its own unique…
Neurogenous tumors arising within bone are exceedingly rare. Neural lesions frequently exert secondary effects on bones, eroding them from the surface and deforming and expanding neural canals and foramina because of the pressure of expansile growth, as in the case…