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Related Experiment Videos

Primary aneurysmal bone cyst of coronoid process.

Amit Goyal1, Isha Tyagi, Rajan Syal

  • 1Neuro-otology Unit, Department of Neuro-surgery, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Raibareily Road, Lucknow (Uttar Pradesh) - 226 014, India. meetugoyal@yahoo.com

BMC Ear, Nose, and Throat Disorders
|March 15, 2006
PubMed
Summary

A rare aneurysmal bone cyst (ABC) of the coronoid process presented as temporal fossa swelling. Surgical removal via a superior infratemporal fossa approach was successful for this rare facial skeleton lesion.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Surgical Pathology

Background:

  • Aneurysmal bone cysts (ABCs) are uncommon in the facial skeleton.
  • While typically affecting the mandible, ABCs originating from the coronoid process are exceptionally rare.
  • This case represents the first reported instance of a coronoid process ABC presenting as temporal fossa swelling.

Purpose of the Study:

  • To report a rare case of an aneurysmal bone cyst originating from the coronoid process.
  • To highlight the diagnostic and surgical challenges of such rare lesions.
  • To evaluate the efficacy of a superior infratemporal fossa approach for excision.

Main Methods:

  • A 17-year-old male presented with an 8-month history of progressive left temporal swelling.
  • CT scan revealed an expansile lytic lesion from the left coronoid process extending into the infratemporal and temporal fossae.

Related Experiment Videos

  • Surgical excision was performed using a superior approach to the infratemporal fossa.

    • Main Results:

    • The lesion was identified as an aneurysmal bone cyst originating from the coronoid process.
    • The cyst had significantly expanded, involving the temporal fossa.
    • Complete excision was achieved through the superior infratemporal fossa approach.

    Conclusions:

    • Coronoid process aneurysmal bone cysts can grow to large sizes, involving adjacent regions like the temporal fossa.
    • A superior approach to the infratemporal fossa offers adequate exposure for complete excision of these lesions.
    • This surgical approach ensures better control and facilitates complete removal of the cyst.