Neupsy Key

Fig. 31.1 MR anatomy of the brainstem. (a) Midline sagittal T2. Pontomesencephalic and pontomedullary sulci (black arrows). Limits of the basis pontis (white arrowheads), with the tegmentum pontis behind. Caudalmost…

Embryonal Tumors Medulloblastoma  Classic  Desmoplastic/nodular medulloblastoma  Medulloblastoma with extensive nodularity  Anaplastic medulloblastoma  Large-cell medulloblastoma CNS primitive neuroectodermal tumors (PNET)  CNS neuroblastoma  CNS ganglioneuroblastoma  Medulloepithelioma  Ependymoblastoma Atypical teratoid/rhabdoid tumor It mostly…

Fig. 16.1 Schematic drawing of the inferior medullary velum and its relationship with the fourth ventricle and cisterna magna Fig. 16.2 Schematic drawing of the tela choroidea (a) and inferior…

Fig. 48.1 Choroid plexus: normal shape and location. The rostral end of the choroid plexus locates at the fastigium and extends to caudal and lateral directions on the inferior velum….

Fig. 63.1 The four curvatures of the adult vertebral column: “cervical, thoracic, lumbar, and sacral.” Thoracic and sacral ones exist during fetal life and are called primary (1°) curvatures. The…

Fig. 21.1 Origin and classification of ependymomas. (a) Midfloor type. Sagittal T2-weighted image (a) shows tumor almost completely filling the fourth ventricle with a clear-cut cleavage with the vermis (arrowheads)….

Fig. 13.1 Schematic classification of intraoperative neurophysiology techniques in the posterior fossa surgery. Left panel: neurophysiological mapping allows to identify the functional landmarks such as the nuclei of motor cranial…

Fig. 34.1 (a) Focal medulla oblongata tumor with contrast enhancement, sagittal view. (b) Axial cut demonstrates a very thin layer of medulla. (c) Postoperative sagittal view. (d) Postoperative axial cut…

49.2.4 Treatment Algorithm Based upon the available literature, the experience of the prospective trial CPT-SIOP-2000, and expert opinion, an international meeting decided guidelines how choroid plexus tumors should be treated….

Fig. 39.1 Axial CT and MRI posterior fossa images of a 3 years old boy. CT section without contrast through the midpons level shows a hyperattenuated heterogeneous midline mass with…