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By: Anna Gooden

Medulloblastoma. By: Anna Gooden. Medulloblastoma. Medulloblastoma is a type of brain tumor. It is also known as PNET. It occurs in children and teenagers. C aused By and Symptoms.

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By: Anna Gooden

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  1. Medulloblastoma By: Anna Gooden

  2. Medulloblastoma • Medulloblastoma is a type of brain tumor. • It is also known as PNET. • It occurs in children and teenagers.

  3. Caused By and Symptoms • Medulloblastoma is caused by "stem cells" that have been prevented from dividing and forming into normal cell types. • Medulloblastoma has atendency to spread to other sites in the nervous system and to other body organs. • Symptoms of Medulloblastoma are : unsteadiness, morning headaches, vomiting, and frequent falls.

  4. Area affected & Who is affected • Medulloblastoma usually form in the fourth ventricle between the brainstem and the cerebellum. • Medulloblastoma is higher in males (62%) than females (38%). Medulloblastoma and other PNET tumors are more common in younger children than older children.

  5. Prognosis and Treatments Available • Treatment begins with maximal removal of the tumor, chemotherapy, and radiation. • Prognosis is worse if the child is less than 3 years old because it can spread easily threw the nervous system. • 40% of Medulloblastoma patients are diagnosed before the age of 5. • 31% are between the ages of 5 and 9 • 18.3% are between the ages of 10 and 14 • 12.7% are between the ages of 15 and 19

  6. Interesting Facts and Websites • The tumor is solid, pink-gray in color • The tumor is very cellular • It has little cytoplasm • Has the tendency to form clusters and rosettes. • Websites: • http://en.wikipedia.org/wiki/Medulloblastoma www.childhoodbraintumor.org

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