Contributors also examine the reasons for the common misdiagnosis of AT/RT tumors as other types of CNS tumors. They help resolve this issue by indicating the details of an abnormality in the genetics of AT/RT, which is unique to AT/RT type. The INII gene on chromosome 22q11 is involved in the AT/RT. The presence of this gene and the SMARCB₁ is discussed. In addition to discussing these important topics, the volume includes presentations of present and future therapies. The volume also explains AT/RT's dissemination to the cerebral fluid, the molecular mechanisms underlying the progression of medulloblastoma, and the importance of gamma knife radiosurgery during multimodality management of medulloblastoma/PNET tumors. Other topics discussed include using magnetic resonance imaging for diagnosing retinoblastoma, and mapping the effects of radiotherapy in low-grade glioma in children. Information on alterations incell-cycle regulators that are influenced by tumor suppressor genes and oncogenes is detailed. Contributors provide recommendations concerning non-narcotic analgesic routines for children recovering from cranial and spinal surgery. The practical knowledge of frontier-expanding research presented leads this authoritative volume to be a compelling addition to the literature.