脑肿瘤是大脑内部或周围细胞的 DNA 发生变化。细胞的 DNA 具有指示细胞该如何做的指令。当健康细胞作为自然生命周期的一部分而死亡的时候,DNA 的变化则会命令细胞快速生长并继续存活。这会在大脑中产生大量额外细胞。这些细胞形成一个生长物,即肿瘤。
导致 DNA 变化并引发脑肿瘤的原因尚不清楚。对于许多患有脑肿瘤的患者来说,其病因从未可知。有时父母会将 DNA 变化传递给孩子。DNA 变化会增加患脑肿瘤的风险。这种遗传性脑肿瘤十分罕见。如果您有脑肿瘤家族病史,请咨询医务人员。您可以考虑向接受过遗传学培训的医务人员进行咨询,以了解您的家族病史是否会增加您患脑肿瘤的风险。
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