Brain tumors in infants and children
In the US, approximately 2000 children and adolescents younger than 20 years of age are diagnosed with malignant brain tumors each year. Higher incidence rates were reported in 1985–94 than in 1975–84. There is some debate as to possible reasons; one theory is that the trend is the result of improved diagnosis and reporting, since the jump occurred at the same time as MRIs became available widely, and since there was no coincident jump in mortality. The CNS cancer survival rate in children is approximately 60%. The rate varies with the age of onset, with younger patients having higher mortality, and cancer type.
In children under 2, about 70% of brain tumors are medulloblastoma, ependymoma, and low-grade glioma. Less commonly, and seen usually in infants, are teratoma and atypical teratoid rhabdoid tumor. Germ cell tumors, including teratoma, make up just 3% of pediatric primary brain tumors, but the worldwide incidence varies significantly
In the US, approximately 2000 children and adolescents younger than 20 years of age are diagnosed with malignant brain tumors each year. Higher incidence rates were reported in 1985–94 than in 1975–84. There is some debate as to possible reasons; one theory is that the trend is the result of improved diagnosis and reporting, since the jump occurred at the same time as MRIs became available widely, and since there was no coincident jump in mortality. The CNS cancer survival rate in children is approximately 60%. The rate varies with the age of onset, with younger patients having higher mortality, and cancer type.
In children under 2, about 70% of brain tumors are medulloblastoma, ependymoma, and low-grade glioma. Less commonly, and seen usually in infants, are teratoma and atypical teratoid rhabdoid tumor. Germ cell tumors, including teratoma, make up just 3% of pediatric primary brain tumors, but the worldwide incidence varies significantly
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