Peritorcular Meningeal Solitary Fibrous Tumor: A Case report

OBJECTIVE: In order to contribute to the Latin American epidemiology of these tumors, we present a Colombian case of a peritorcular meningeal solitary fibrous tumor (mSFT), demonstrating the histological findings, surgical nuances, and relevant anatomy for surgical resection. CASE REPORT: A 47-year-old Hispanic woman presented to the emergency department with a 1-month history of severe headache that was unresponsive to medication. Magnetic resonance imaging demonstrated a 4 x 4 x 4.7 cm hypointense lesion in the left occipital region with peritumoral edema, with homogeneous enhancement after gadolinium administration. Gross total resection was performed through a right occipital parasagittal craniotomy with a straightforward approach. Pathology examination reported the proliferation of spindle cells with diffuse and intense positive nuclear STAT6 staining, confirming the histological diagnosis of a mSTF. CONCLUSIONS: We present to our knowledge the first Colombian mSTF in the English literature, contributing to the epidemiology and presentation of this rare tumor in Latin America.