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Related Concept Videos

Accessory Structures of the Eye01:17

Accessory Structures of the Eye

Optical perception, or vision, is an extraordinary sense dependent on converting light signals received via the ocular organs. These organs, known as eyes, are securely positioned within the bony cavities of the skull, called orbits. The orbits serve a dual purpose: a protective shield for the ocular globes and a stable attachment point for the soft ocular tissues. The eye's external protective mechanisms include the eyelids, which are edged with lashes that act as a barrier against foreign...
Muscles of the Eye01:20

Muscles of the Eye

The muscles of the eye are sophisticated structures that control eye movement and focus, allowing for the precise and rapid adjustments necessary for vision. The human eye is controlled by ten muscles — six extraocular muscles, three intraocular muscles, and one primary eyelid retractor muscle.
Extraocular Muscles
The six extraocular muscles surround the eyeball and control its movements. They are responsible for a wide range of eye motions, including looking up, down, left, right, and rotating...

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Related Experiment Video

Updated: Jul 4, 2026

Three-Dimensional Reconstruction of Orbital Fractures
08:18

Three-Dimensional Reconstruction of Orbital Fractures

Published on: May 16, 2025

Extraskeletal osteosarcoma of the orbit.

R Jacob1, E Abraham, R Jyothirmayi

  • 1Department of Radiotherapy Regional Cancer Centre Trivandrum Kerala India.

Sarcoma
|June 4, 2008
PubMed
Summary

This case report details a rare orbital extraskeletal osteosarcoma in a young male. Extraskeletal osteosarcomas are aggressive, with orbital involvement being exceptionally uncommon.

Area of Science:

  • Oncology
  • Ophthalmology
  • Pathology

Background:

  • Extraskeletal osteosarcomas are rare, aggressive tumors typically affecting the lower extremities or girdles.
  • These tumors have a high metastatic potential and are associated with poor patient outcomes.
  • The orbit is an exceptionally rare site for extraskeletal osteosarcoma, with limited prior case reports.

Purpose of the Study:

  • To report a unique case of extraskeletal osteosarcoma occurring in the orbit of a 22-year-old male.
  • To highlight the rarity of this tumor presentation in the orbital region.
  • To contribute to the limited literature on orbital extraskeletal osteosarcomas.

Main Methods:

  • Case presentation of a 22-year-old male with orbital extraskeletal osteosarcoma.

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Last Updated: Jul 4, 2026

Three-Dimensional Reconstruction of Orbital Fractures
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  • Review of existing literature on extraskeletal osteosarcomas, focusing on rare sites like the orbit.

    • Main Results:

    • Successful identification and reporting of a 22-year-old male patient with extraskeletal osteosarcoma of the orbit.
    • Confirmation of the extreme rarity of this tumor in the orbital location, with only one prior reported case.

    Conclusions:

    • Orbital extraskeletal osteosarcoma is an exceedingly rare entity.
    • Optimal treatment strategies for extraskeletal osteosarcomas remain under investigation, involving surgery, radiotherapy, and chemotherapy.
    • Further research and case reporting are crucial for understanding and managing this aggressive malignancy in rare locations.