The causes of medulloblastoma include the basic etiology and risk factors, the former is mainly genetic mutation, the latter is familial adenomatous polyposis and other clinical syndromes, and the specific etiology varies from person to person.
1. Basic etiology: It is currently believed that medulloblastoma originates from the precursor cells of cerebellar granule neurons or pluripotent progenitor cells in the subventricular zone, which will lead to the occurrence of medulloblastoma when these cells undergo genetic mutations and proliferate continuously without regulation.
2. Risk factors: Familial adenomatous polyposis (caused by mutation of APC gene), nevoid basal cell carcinoma syndrome (caused by mutation of PTCH1 gene), Li-Fameni syndrome (caused by mutation of TP53 gene) and other clinical syndromes associated with mutation of certain genes will increase the risk of medulloblastoma.
In conclusion, there are many possible causes of medulloblastoma, and the specific causes of medulloblastoma may differ from one individual to another, which should be analyzed by a professional doctor according to the actual situation of the individual.