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Journal of Korean Neurosurgical Society > Volume 30(11); 2001 > Article
Journal of Korean Neurosurgical Society 2001;30(11): 1328-1331.
Collision Tumor of Meningioma and Anaplastic Astrocytoma.
Jin Yell Park, Kyung Sik Seok, Jae Hoon Cho, Dong Gee Kang, Sang Chul Kim
Department of Neurosurgery, Fatima Hospital, Taegu, Korea.
Multiple primary brain tumors of different cell types are rare, accounting for 0.4% of all the primary brain tumors. Phakomatosis, irradiation, trauma and other factors have been associated with multiplicity of brain tumors. When these tumors are close or intermixed, the term "collision" has been used, and in these cases an explanation might be that one tumor stimulating the other. We report a patient with collision tumor of meningioma and anaplastic astrocytoma, who did not have a history of trauma, irradiation, or phakomatosis.
Key Words: Collision tumor; Meningioma, Anaplastic astrocytoma
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