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BrainStem Leisons; Streotactic Approach Useful for Clinico-Pathological Dignosis

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                                                  Brain Stem Leisons:Stereotactic Biopsy Useful Stool For Histo-Pathological Diagnosis.

Dr.K.Bagathsingh 1, Dr.K.Selvamuthukumaran1 ,Dr.K.Senthilkumar2,Dr.R.Ganesh3,Dr.Anil4.

1.Department Of Neurosurgery,2.Department Of Anesthesia,3.Department Of Radiology,

4.Department Of Pathology.

The appreciation that brainstem tumours do not comprise a homogeneous pathological group and that up to 20% of the preoperative radiological diagnoses of brainstem lesions prove at operation to be wrong, has established the need for a firm histological diagnosis prior to treatment.1
 MRI has been shown to have a limited accuracy in establishing a diagnosis with false rates of up to 30% and moreover, tumor gradation was false in more than 50% of cases when compared to results of histopathological examination2. Appropriate therapy of brainstem lesions is guided by accurate diagnosis. Because the majority of brainstem lesions are not amenable to surgical resection, stereotactic biopsy is an attractive method of obtaining pathological tissue.Here we had couple of brainstemLeisons with various clinical presentations&Radiologicalfindings.Many of our patients are children,We donot want to subject to Palliative Chemo-Radiation directly. In brain tumors not amenable to surgical resection, stereotactic biopsy is the procedure of choice to establish a diagnosis and in light of available studies demonstrating similar rates of periprocedural risks, this applies to both: Supratentorial tumors and lesions located in the brainstem.

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