• World Neurosurg · Dec 2023

    Mentalizing can be impaired in patients with meningiomas originating in the anterior skull base.

    • Munehiro Demura, Riho Nakajima, Shingo Tanaka, Masashi Kinoshita, and Mitsutoshi Nakada.
    • Department of Neurosurgery, Graduate School of Medical Sciences, Kanazawa University, Kanazawa, Ishikawa, Japan.
    • World Neurosurg. 2023 Dec 16.

    ObjectiveMentalizing is an essential function of our social lives. Impairment of mentalizing due to meningiomas has not received attention because most patients return to their social lives after surgical treatment. We investigated the influence of meningiomas and their surgical resection on mentalizing.MethodsLow- and high-level mentalizing were retrospectively examined in 61 patients with meningiomas and 14 healthy volunteers. Mentalizing was assessed using the facial expression recognition test and picture arrangement test of the Wechsler Adult Intelligence Scale, third edition, before and after surgery. We examined the influence of tumor localization on mentalizing and recovery from mentalizing disorders after tumor resection. Voxel-based lesion-symptom mapping was performed to investigate the relationship between impairments in mentalizing and tumor location.ResultsBefore surgery, mentalizing was impaired significantly in patients with meningiomas compared to those in the control group (low-level: P = 0.015, high-level: P = 0.011). This impairment was associated with contact between the tumor and frontal lobe (low-level: P = 0.036, high-level: P = 0.047) and was severe in patients with tumors arising in the anterior skull base (low-level: P = 0.0045, high-level: P = 0.043). Voxel-based lesion-symptom mapping revealed that when the basal cortex of the frontal lobe was compressed by the tumor, the risk of impaired mentalizing was high. The region responsible for high-level mentalizing was located deeper than that responsible for low-level mentalizing. After the surgical removal of the tumor, the test scores significantly improved (low-level: P = 0.035, high-level: P = 0.045).ConclusionsMentalizing was impaired by meningiomas arising from the anterior skull base, but it can improve after surgical resection of the tumors.Copyright © 2023 Elsevier Inc. All rights reserved.

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