Mapping and anatomo-surgical techniques for SMA-cingulum-corpus callosum gliomas

Acta Neurochirurgica (2021) 163:1239–1246

Awake brain mapping paradigms are variable, particularly in SMA, and not personalised to each patient. In addition, subpial resections do not offer full protection to vascular injury, as the pia can be easily violated.

Methods Mapping paradigms developed by a multidisciplinary brain mapping team. During resection, a combined subpial/ interhemispheric approach allowed early identification and arterial skeletonization. Precise anatomo-surgical dissection of the affected cingulum and corpus callosum was achieved.

Conclusions In SMA-cingulum-CC tumours, a combined subpial/interhemispheric approach reduces risk of vascular injury allowing precise anatomo-surgical dissections. Knowledge of cognitive functions of affected parcels is likely to offer best outcomes.