Paranasal sinus carcinoma causing orbital mucocele.
Three patients presented with typical orbital mucoceles. However, subsequent histopathologic study revealed paranasal sinus concomitant squamous cell carcinoma in all three cases. Careful histologic investigation is necessary before considering orbital mucocele a benign process.
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000150:complications* / Q000175:diagnosis; D005128:Eye Diseases / Q000209:etiology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000209:etiology*; D009915:Orbit; D010255:Paranasal Sinus Neoplasms / Q000150:complications* / Q000175:diagnosis