Frontal operculum gliomas: language outcome following resection

Area of Science:

• Neurosurgery
• Neurology
• Oncology

Background:

• The dominant hemisphere frontal operculum is crucial for speech and language functions.
• Tumors in this region may increase the risk of postoperative speech and language deficits.
• The exact likelihood of temporary or permanent language dysfunction is not well-established.

Purpose of the Study:

• To assess the risk of transient and permanent language dysfunction after resection of gliomas in the dominant frontal operculum.
• To identify patient characteristics associated with increased risk of language deficits.
• To evaluate the safety and morbidity of surgical resection in this critical brain area.

Main Methods:

• Retrospective analysis of patients with frontal gliomas involving the dominant frontal operculum.
• Tumor classification based on involvement of specific opercular areas (pars orbitalis, triangularis, opercularis).
• Comparison of patient characteristics and outcomes between those with and without language deficits.

Main Results:

• Forty-three patients were included in the study.
• Transient language deficits occurred in 27.9% of patients, and persistent deficits in 9.8%.
• Preoperative language deficits and seizures with speech dysfunction were associated with higher risks of deficits.

Conclusions:

• Resection of gliomas in the dominant frontal operculum is generally well-tolerated with acceptable morbidity.
• The low rate of language morbidity suggests that surgical intervention should not be deterred by tumor location.
• Tumor involvement of the pars orbitalis was not associated with persistent deficits.