Brain Stem NeoplasmsBrain StemStem CellsBrain NeoplasmsBrain ChemistryTumor Markers, BiologicalBrain InjuriesNeoplasmsPancreatic NeoplasmsCell Line, TumorTumor Necrosis Factor-alphaTumor BurdenMagnetic Resonance ImagingEvoked Potentials, Auditory, Brain StemBrain MappingNeoplasms, ExperimentalBrain Stem InfarctionsBrainNeoplastic Stem CellsHematopoietic Stem CellsPlant StemsStem Cell TransplantationImmunohistochemistryWilms TumorSkin NeoplasmsGenes, Tumor SuppressorAdult Stem CellsKidney NeoplasmsCarcinoid TumorTime FactorsTumor Suppressor Protein p53NeuronsCell ProliferationNeuroendocrine TumorsMice, Inbred C57BL