J Korean Neurosurg Soc.  2001 Nov;30(11):1328-1331.

Collision Tumor of Meningioma and Anaplastic Astrocytoma

• Park JY
• Seok KS
• Cho JH
• Kang DG
• Kim SC

Abstract

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.

Keyword

Collision tumor; Meningioma, Anaplastic astrocytoma

MeSH Terms

Astrocytoma*
Brain Neoplasms
Humans
Meningioma*
Neurocutaneous Syndromes