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Malignant inverted papilloma characterized by proptosis
American Journal of Ophthalmology
|July 1, 1976
Summary
An inverted papilloma of the ethmoid sinus can mimic an orbital tumor, leading to proptosis. Despite treatment, this lesion progressed to fatal intracranial extension, highlighting aggressive potential.
Area of Science:
- Otolaryngology
- Ophthalmology
- Oncology
Background:
- Inverted papillomas are benign tumors typically originating in the sinonasal tract.
- Orbital involvement by sinonasal inverted papillomas is rare but can present with significant clinical manifestations.
Observation:
- A 67-year-old male presented with proptosis, clinically and radiologically mimicking a primary orbital tumor.
- The lesion was presumed to originate from the ethmoid sinus.
Findings:
- Squamous cell carcinoma developed within the inverted papilloma.
- Despite aggressive treatment including irradiation and exenteration 3.5 years after symptom onset, the tumor showed fatal intracranial extension.
Implications:
- This case underscores the potential for sinonasal inverted papillomas to undergo malignant transformation.
- It highlights the diagnostic challenge and the aggressive nature of such tumors when they extend intracranially.
- Early detection and comprehensive management are crucial for improving outcomes in these rare but severe cases.