In Children
In the US, about 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 1975–83. There is some debate as to the reasons; one theory is that the trend is the result of improved diagnosis and reporting, since the jump occurred at the same time that MRIs became available widely, and there was no coincident jump in mortality. The central nervous system (CNS) cancer survival rate in children is approximately 60%. The rate varies with the type of cancer and the age of onset: younger patients have higher mortality.
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.
Read more about this topic: Brain Tumor
Famous quotes containing the word children:
“Education is the point at which we decide whether we love our children enough not to expel them from our world and leave them to their own devices, not to strike from their hands their chance of undertaking something new—but to prepare them in advance for the task of renewing a common world.”
—Hannah Arendt (20th century)
“A man of sense and energy, the late head of the Farm School in Boston Harbor, said to me, “I want none of your good boys,Mgive me the bad ones.” And this is the reason, I suppose, why, as soon as the children are good, the mothers are scared, and think they are going to die.”
—Ralph Waldo Emerson (1803–1882)