A 60-year-old male asked:
2 yrs ago, cerebellar tonsillar Herniation after tumor resection: can this cause Chiari Malformation? A lot of recurring symptoms like pre-resection.
1 doctor answer
Dr. Eric Weisman answered
35 years experience in Neurology
Chicken vs Egg: When did the cerebellar tonsils descend into the foramen magnum ? Was this prior to developing a mass effect from the tumor or cerebral edema ? If so then we would consider Chiari. Usually there are other features like "Beaking of the midbrain tectum", elongation of the 4th ventricle, abnormality of the tentoral incisura, and interdigitation of the midline dorsal cerebral cortex with Chiari Type I
Answered on Nov 28, 2017
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