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Video Abstract
2021
:12;
320
doi:
10.25259/SNI_274_2021

Orbitozygomatic approach for large orbital cavernous hemangioma

Department of Neurosurgery, Paulo Niemeyer State Brain Institute, Rio de Janeiro, Brazil,
Department of Neurosurgery, Santa Teresa Hospital, Petropolis, Brazil,
Department of Neurosurgery, Antonio Pedro University Hospital, Niteroi, Brazil.
Corresponding author: Jose Orlando de Melo Junior, Department of Neurosurgery, Paulo Niemeyer State Brain Institute, Rio de Janeiro, Brazil. jomjunior@gmail.com
Licence

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-Share Alike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.

How to cite this article: de Melo Junior JO, de Castro MF, Landeiro JA. Orbitozygomatic approach for large orbital cavernous hemangioma. Surg Neurol Int 2021;12:320.

Abstract

Background:

Cavernous hemangiomas, more accurately defined as cavernous venous malformations, constitute the most common primary intraorbital tumors of adults comprising 4–9% of all tumors,[4] and the second most frequent cause of unilateral proptosis after thyroid-related orbitopathy.[3] Over 80% are located within the intraconal compartment, most commonly in the lateral aspect.[1] Surgical treatment for orbital cavernous hemangioma is generally required in symptomatic cases, optic nerve compression, and cosmetically disfiguring proptosis.[2] Transcranial approaches, the most familiar approaches for neurosurgeons, provide wide access to the entire superior and lateral orbit. They usually offer direct visualization, allowing for a safer dissection, while minimizing significant injury to the native neural and vascular anatomy of the orbit.[5] Although transcranial approaches continue to evolve, in many cases, they have been supplanted by endoscopic skull base approaches and modifications to deep lateral orbitotomy approaches.[5]

Case Description:

A 62-year-old male patient presented with slowly expanding left proptosis, which he had first noticed 3 years before presentation. He was already blind in his right eye due to a history of traumatic amaurosis in childhood. The left eye examination revealed severe proptosis with restricted eye movement in all directions and significant visual impairment (visual acuity of 20/300, expressed by Snellen test, with no improvement on correction). MRI of the orbit showed a large left superolateral intraconal cavernous hemangioma compressing and displacing the optic nerve, with the typical feature of slow gradual irregular enhancement with delayed washout on contrast-enhanced image. A one-piece modified orbitozygomatic approach was performed and a total en block resection was achieved. The bone flap was fixed with titanium miniplates and screws, the temporal muscle and the skin were closed in a standard fashion. The patient did not present any new deficit in the postoperative period. The patient had good functional and cosmetic outcomes with resolution of proptosis, restoration of eye movements, and improvement of visual acuity in the 3-month follow-up. Postoperative MRI showed total resection.

Conclusion:

The orbitozygomatic approach for large orbital cavernous hemangioma provides satisfactory orbital decompression and large working space, reduces traction, and increases visualization and freedom to dissect small vessels and nerves that may be tightly attached to the tumor pseudocapsule.

Keywords

Orbital cavernous hemangioma
Orbital tumor
Orbitozygomatic approach
Skull base surgery
Surgical approach

Annotations[1-5]

  1. 00:00 – Introduction.

  2. 00:23 – Case presentation.

  3. 00:50 – Preoperative imaging.

  4. 01:18 – Positioning and skin incision.

  5. 01:51 – Subfascial dissection.

  6. 01:58 – Landmarks in a cadaver model.

  7. 03:20 – Orbitozygomatic approach.

  8. 03:26 – Tumor resection.

  9. 04:34 – Postoperative imaging.

  10. 04:39 – Outcome.

Declaration of patient consent

The authors certify that they have obtained all appropriate patient consent.

Financial support and sponsorship

None.

Conflicts of interest

There are no conflicts of interest.

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www.surgicalneurologyint.com

REFERENCES

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