Posterior lobe tumors, the family of [[pituicyte tumor]]s, include the traditional [[pituicytoma]], the oncocytic form ([[spindle cell oncocytoma]]), the granular cell form ([[granular cell tumor]]), and the ependymal type ([[sellar ependymoma]]). Although these historical terms are entrenched in the [[literature]], they are nonspecific and confusing, such that [[oncocytic pituicytoma]], [[granular cell pituicytoma]], and [[ependymal pituicytoma]] are now proposed as more accurate. Tumors with hypothalamic neuronal differentiation are classified as [[gangliocytoma]]s or [[neurocytoma]]s based on large and small cell sizes, respectively. This classification sets the standard for a high degree of sophistication to allow individualized patient management approaches
((Asa SL, Mete O, Perry A, Osamura RY. Overview of the [[2022]] [[WHO]] [[Classification]] of [[Pituitary Tumor]]s. Endocr Pathol. 2022 Mar;33(1):6-26. doi: 10.1007/s12022-022-09703-7. Epub 2022 Mar 15. PMID: 35291028.))