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Updated: Jul 4, 2026

Lateral Molar Approach-Driven Transoral Endoscopic Procedure for Benign Infratemporal Fossa Tumor Resection

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Published on: August 15, 2025

Primary endo-orbital osteoid osteoma.

Mohsen Bahmani Kashkouli¹, Mahmoud Reza Khalatbari, Taha Yahyavi

¹Oculoplastic Unit, Eye Research Center, Rassoul Akram Hospital, Iran University of Medical Sciences, Tehran, Iran. bahmanik@yahoo.com

Orbit (Amsterdam, Netherlands)

|June 24, 2008

Summary

This report details the first documented case of an endo-orbital osteoid osteoma, a benign bone tumor. Surgical removal successfully treated the patient, resolving symptoms of eyelid edema and proptosis.

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Area of Science:

Ophthalmology
Orthopedic Oncology
Pathology

Background:

Osteoid osteoma is a common benign osteoblastic tumor typically found in long bones and vertebrae.
This condition usually presents with localized pain, often worse at night and relieved by NSAIDs.

Observation:

A 22-year-old male presented with a year of left eye symptoms including eyelid edema, proptosis, and pain.
Imaging revealed a contrast-enhancing lesion, measuring 15 x 11 mm, on the roof of the left orbit.

Findings:

Histopathological examination confirmed the lesion to be an osteoid osteoma.
Surgical excision of the endo-orbital osteoid osteoma was performed.

Implications:

This case represents the first reported instance of osteoid osteoma occurring within the orbit.
Successful surgical management highlights a potential treatment option for this rare orbital tumor.
Further research may elucidate the specific mechanisms and optimal diagnostic approaches for intraorbital osteoid osteomas.