The incidence of morbidity due to stereotactic biopsy ranges from 1.0–6.5%, and mortality rates range from 0 to1.7%
the risks associated with stereotactic brain biopsy are minimal. The complication rate of a stereotactic brain tumor biopsy is 2.3%, predominately caused by hemorrhages (0.7%), and edema or infection (< 2%).
From time to time the sample of tissue acquired may be non-diagnostic, which may warrant a repeat biopsy.
The diagnostic accuracy is 97%.