• JNMA J Nepal Med Assoc · Jul 2018

    Clinical Experience with Frame Based Stereotactic Biopsy for Intracranial Space Occupying Lesion.

    • Suresh Bishokarma, Shikher Shrestha, Munu Napit, and Dinesh Nath Gongal.
    • Department of Neurosurgery, Upendra Devkota Memorial National Institute of Neurological and Allied Sciences, Bansbari, Kathmandu, Nepal.
    • JNMA J Nepal Med Assoc. 2018 Jul 1; 56 (212): 749-753.

    IntroductionPreoperative diagnosis of intracranial space occupying lesion based solely on clinical and neuroimaging evaluation may not be sufficient to institute treatment plan without histopathological certainty. Frame based stereotactic biopsy is a technique of retrieving biopsy specimen to determine the histopathology. The aim of this study is to assess the efficacy and accuracy of frame based technique.MethodsThis is a cross-sectional study conducted among 80 patients who underwent computed tomography guided frame based stereotactic biopsy during a period of 6 years. All operations were performed under local anesthesia. Histopathology reports were retrieved and accuracy of biopsy technique analyzed.ResultsOut of 80 patients, 58 were male with male to female ratio of 2.6:1. Median age of patients were 50 years with range from 16 to 75 years. Most lesions were in deeper location 49 (61.3%). Most common location was Parietal, 15 (18.8%) followed by Thalamic, 12 (15%). Mean size of lesion was 2.88±0.71cms ranged from 2 to 5cms. Biopsy was accurate to retrieve target in 74 (92.5%) patients. Histopathology revealed glial tumor in 41 (51.2% ) of cases. Overall morbidity was observed in 3 (5.5%) patients. There is no procedure related mortality in this study during study period.ConclusionsFrame based biopsy of intracranial space occupying lesion is safe and efficacious procedure with high diagnostic yield.

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