A rare appearance of the trigeminocardiac reflex during resection of posterior parasagittal meningioma.

Background: Although a well-recognized phenomenon of the tentorium and posterior fossa, the trigeminocardiac reflex (TCR) has been rarely reported during surgery involving the posterior falx cerebri.

Case Description: We present the case of a 63-year-old woman who underwent repeat resection of an atypical parasagittal meningioma involving the posterior falx. During resection, TCR was repeatedly elicited during manipulation and coagulation of the falx.

Descriptive epidemiology of craniopharyngiomas in the United States.

Purpose: Craniopharyngiomas are rare benign brain tumors originating from errors in differentiation during embryogenesis. Given current interest in treatments that target genetic and molecular signatures of specific craniopharyngioma subtypes, updated and comprehensive epidemiologic data of these subtypes are necessary to inform and direct resources.

Methods: We utilized data from the Central Brain Tumor Registry of the United States (CBTRUS), which represents 100% of the US population.