Moreover, selected fusions found in cerebellum were also present in medulloblastoma, i.e., SEPTIN7P14--PSPH, PAUPAR--RCN1 and ADAMTSL3--SH3GL3, and selected fusions in medulloblastoma are known to be expressed in normal tissues, i.e., KANSL1--ARL17A/B and TFG--ADGRG7, leaving open the possibility that molecular events that can generate fusion transcripts in normal tissue, e.g., read-through transcription or trans-splicing, may also act in tumors. This evidence concerns the gene ARL17A and medulloblastoma.