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Related Experiment Video

Updated: Jul 20, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

Published on: July 5, 2021

Fronto-ethmoid sinus mucocele: a case report.

Kelly A Malloy¹

¹Pennsylvania College of Optometry, Elkins Park, Pennsylvania 19027, USA. kmalloy@pco.edu <kmalloy@pco.edu>

Optometry (St. Louis, Mo.)

|August 31, 2006

Summary

Paranasal sinus mucoceles can cause serious eye complications. Early recognition of symptoms like proptosis and vision changes is crucial for prompt diagnosis and treatment of these mucus-filled cavities.

Area of Science:

Ophthalmology
Otolaryngology
Medical Imaging

Background:

Mucoceles are mucus-filled cavities within the paranasal sinuses.
Obstruction of sinus ostia, often due to chronic sinusitis, trauma, or surgery, leads to mucocele formation.
These lesions can erode bone and invade adjacent structures like the orbit and brain.

Observation:

A 39-year-old woman presented with a year of diplopia, a nodule above her eye, proptosis, and restricted eye movements.
Imaging revealed a large ethmoid sinus mucocele with bony erosion and orbital invasion.
The patient had a history of sinus surgery 9 years prior.

Findings:

Computed tomography and magnetic resonance imaging confirmed an ethmoid sinus mucocele.
The mucocele caused significant bony erosion and invaded the orbit.

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Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery

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Published on: July 5, 2021

Ocular findings included proptosis and deficits in eye adduction and supraduction.

Implications:

Paranasal sinus mucoceles can present with ocular symptoms due to their proximity to the orbit.
Ophthalmologists and other eye care providers must consider mucoceles in the differential diagnosis of orbital and visual disturbances.
Prompt imaging and surgical referral are essential for managing mucoceles to prevent severe complications.