stereotactic biopsy
A minimally invasive neurosurgical procedure using image-guided targeting to obtain tissue samples from brain lesions for histopathological diagnosis.
Full Definition
Stereotactic biopsy employs a rigid coordinate system based on high-resolution imaging (CT or MRI) to precisely target brain lesions for tissue sampling. A small burr hole is created, and a biopsy needle is advanced to the target using stereotactic guidance. This technique is particularly valuable for deep-seated lesions, lesions in eloquent brain areas, or when the differential diagnosis includes lymphoma or infection where tissue diagnosis is essential before treatment. The procedure carries relatively low morbidity compared to open craniotomy.
Usage
Usage note: Distinguish from stereotactic radiosurgery and other stereotactic procedures in surgical documentation.
In Context
- "Stereotactic biopsy of the brainstem lesion revealed high-grade glioma histology." — Pathology consultation report
- "The deep thalamic mass was safely sampled using frameless stereotactic biopsy techniques." — Operative note