Gross and Histological Examination of a Large Spheno-Orbital Meningioma

Anna E Kaiser; Sriya V Reddy; Matthew A Von Zimmerman; Amber Gordon; Francis J Liuzzi

doi:10.7759/cureus.10256

Gross and Histological Examination of a Large Spheno-Orbital Meningioma

Cureus. 2020 Sep 5;12(9):e10256. doi: 10.7759/cureus.10256.

Authors

Anna E Kaiser¹, Sriya V Reddy¹, Matthew A Von Zimmerman¹, Amber Gordon¹, Francis J Liuzzi²

Affiliations

¹ Medicine, Lake Erie College of Osteopathic Medicine, Bradenton, USA.
² Anatomy, Lake Erie College of Osteopathic Medicine, Bradenton, USA.

Abstract

Meningiomas arise from arachnoid cap cells and are the most common heavily researched intracranial tumors. Most of these neoplasms are benign and are classified as World Health Organization (WHO) grade I. They are often found in parasagittal and falx regions, over cerebral convexities, and in the sphenoid ridges. Spheno-orbital meningiomas (SOMs) occupy the cranium and the orbit and are less commonly encountered. Nonetheless, in this case study, a 9.5 cm × 5 cm SOM occurring in a 93-year-old female cadaver was identified and examined. The tumor spanned from the left middle cranial fossa, through the anterior fossa and invaded the orbit. It caused proptosis of the left eye, compression of the temporal lobe, and damage to the optic nerve. Histological examination of the tumor revealed characteristics of a WHO grade I meningothelial meningioma.

Keywords: meningothelial meningoma; spheno-orbital meningioma.

Publication types

Case Reports