Ectopic Inferior Orbital Meningioma

JOURNAL TITLE: An International Journal Clinical Rhinology

Author
1. Abiraj Kumar
2. Bruttendu Moharana
3. Pankaj Gupta
4. Chirag Ahuja
ISSN
0974-4630
DOI
10.5005/jp-journals-10013-1301
Volume
10
Issue
1
Publishing Year
2017
Pages
4
Author Affiliations
    1. Postgraduate Institute of Medical Education and Research, Chandigarh, India
    1. Department of Ophthalmology, Postgraduate Institution of Medical Education and Research, Chandigarh, India
    1. Department of Ophthalmology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
    1. Department of Ophthalmology, Postgraduate Institute of Medical Education & Research, Chandigarh, India
  • Article keywords
    Anteroinferior, Ectopic, Extraconal, Meningioma, Orbit

    Abstract

    Aim

    To present a unique case of ectopic orbital meningioma presenting in anteroinferior part of orbit.

    Introduction

    Primary orbital meningiomas arise from the optic nerve sheath and constitute 10 to 30% of orbital meningiomas. Secondary orbital meningiomas represent 70 to 90% of orbital meningiomas and are the direct extension of intracranial meningiomas into the orbit. Rarely, ectopic rests of arachnoid cells give rise to meningiomas separate from optic nerve sheath. Ectopic orbit meningioma is a rare tumor arising from ectopic arachnoidal tissue. The present case report describes an elderly patient with ectopic orbital meningioma in anteroinferior quadrant.

    Case report

    A 70-year-old female patient presented with slowly growing mass in the inferior part of right orbit. This lesion was firm in consistency and not fixed to skin or bone. Computed tomography scan showed a homogeneous mass lesion in anteroinferior part of right orbit without any bony changes. The orbital mass was excised. Anatomic-pathologic evaluation of the excised specimen revealed a benign meningioma of a meningotheliomatous type.

    Conclusion

    Ectopic orbital meningioma may present in elderly patients in anteroinferior orbit.

    Clinical significance

    An ectopic orbital meningioma should be considered in differential diagnosis of firm orbital mass presenting in anteroinferior orbit.

    How to cite this article

    Gupta P, Kumar A, Moharana B, Vaiphei K, Ahuja C. Ectopic Inferior Orbital Meningioma. Clin Rhinol An Int J 2017;10(1):32-35.

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