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meningioma [2026/04/14 17:41] – created scottmeningioma [2026/05/26 17:15] (current) – [Important Sequences for Identifying Meningioma] scott
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 +=====Meningioma=====
 +
 ====Meningioma==== ====Meningioma====
 +Meningiomas are typically benign and slow growing tumors arising from the meninges. They are commonly well encapsulated, focal, round, and solid. Less commonly, meningiomas can be invasive, have plaque-like shapes, or varied internal composition. They can occur anywhere along the CNS, but are most common around the brain. Meningiomas have a few key identifying characteristics; some or all may be present:
 +
 +  * Vivid contrast enhancement
 +  * 'Dural Tail' sign
 +  * Compression or herniation of other brain structures
 +  * Hyperostosis (bony overgrowth) of the cranium by the tumor
 +  * Hemorrhagic or cystic components
 +
 +====Important Sequences for Identifying Meningioma====
 +  * T1 weighted Post Contrast ; with or without Fat Saturation
 +
 +{{::mening_labeled.png?600|}}
 +
 +{{::plaque_mening.png?600|}}{{::plaquemening2.png?600|}}
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 +
 +Below: Large meningioma in a cat; note the strong and homogenous enhancement, dural tail, and hyperostosis present
 +
 +{{::ax_t1_c_meningioma.gif?}}
 +
 +
 +Below: Note the unfortunate presence of TWO meningiomas. Hyperostosis and dural tails present.
 +
 +{{::copy_of_double_meningioma.gif?}}
  
-===Meningioma===