Fig. 6.1 (a) Pilocytic astrocytoma showing biphasic architecture, with both a loose, hypocellular pattern (right half) and a compact cellular pattern (left half). H&E, original magnification ×100. (b) Rosenthal fibers…
Fig. 4.1 The graphic demonstrates the increased carcinogenic risk related to radiation exposure for the pediatric population compared to the adult population. Reprinted from Peck DJ, Samei E. How to…
Fig. 9.1 Typically posterior fossa juvenile pilocytic astrocytomas Within the brainstem an exophytic tumor component is suggestive of a low grade glioma (Fig. 9.2). Fig. 9.2 Exophytic brainstem low grade…
Fig. 17.1 Choroid plexus carcinoma in an infant (MRI T2-weighted image) Pathology/Biology Choroid plexus papillomas are classified as a WHO grade I (low-grade) tumour, while choroid plexus carcinoma is a…
1. RS alone to exploit the biology of large single doses of radiation in low-grade tumors 2. RS as an adjunct to more conventionally fractionated radiation to escalate tumor dose…
Fig. 16.1 Preoperative coronal (a) and sagittal (b) T1-weighted MR images following gadolinium infusion showing a predominantly cystic sellar and suprasellar craniopharyngioma in a 2 year old. Postoperative coronal (c)…
Fig. 14.1 Germinoma resembles the primordial germ cell tumor of the gonads. Teratoma mimics the fetus itself, yolk sac tumor resembles the yolk sac, choriocarcinoma is similar to trophoblast or…
Fig. 23.1 Axial (a) and sagittal (b) brain MRI T1-weighted images with contrast showing a characteristic SMART syndrome. This 13-year-old female was treated with 39.6 Gy of craniospinal radiation following…
Fig. 13.1 This MRI shows a very large posterior fossa ependymoma filling the fourth ventricle and extending into the left cerebellopontine angle through the foramen of Luschka (Reprinted from Teo…
Fig. 12.1 CT and MR imaging of medulloblastoma.(a) Axial contrast-enhanced CT showing a hyperdense mass compressing the 4th ventricle (white arrow). Note the hydrocephalus with accompanying trans-ependymal flow (white arrow)….
