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A Rare Intraorbital Mass: An Isolated Mucocele
Che Mohd Hilmi Che Mat1, Fakri Mustapha2, Rosli Mohd Noor2
1Universiti Sains Malaysia, School of Medical Sciences, Department of Otorhinolaryngology-Head and Neck Surgery, Kelantan, Malaysia.
Medeniyet Medical Journal
|March 15, 2021
Summary
This case report highlights a rare isolated intraorbital mucocele presenting as medial canthal swelling. Despite initial imaging suggesting paranasal sinus involvement, surgery revealed a lesion distinct from the sinuses.
Area of Science:
- Otolaryngology
- Ophthalmology
- Pathology
Background:
- Mucoceles are benign cystic lesions arising from obstructed sinus ostia, capable of bone erosion.
- While typically associated with paranasal sinus disease, isolated intraorbital presentations are uncommon.
Observation:
- A 39-year-old female presented with right medial canthal swelling and no nasal symptoms.
- Nasendoscopy revealed normal findings, but imaging suggested a right ethmoidal mucocele.
- Intraoperative findings identified an isolated intraorbital lesion, lateral to the lamina papyracea, discharging mucin.
Findings:
- The lesion was confirmed as an isolated intraorbital mucocele, separate from the paranasal sinuses.
- Histopathological analysis confirmed a benign cystic mucinous lesion.
Implications:
- This case underscores the importance of considering isolated intraorbital mucoceles in the differential diagnosis of medial canthal masses.
- Accurate preoperative diagnosis can be challenging, necessitating a high index of suspicion and potentially advanced imaging or intraoperative findings.
- Management requires careful surgical planning to ensure complete excision and prevent recurrence.
