title: 'Cholesteatoma' of the orbit.
abstract: 'Cholesteatoma' of the orbit is a variant of pseudotumor histologically characterized by masses of cholesterol crystals. We propose the term "epidermoid or true cholesteatoma" for lesions containing epithelial elements and refer to those nonepithelium-containing pseudotumors as "cholesterol granulomas." Important clinical features distinguish between epidermoid cholesteatomas and cholesterol granulomas of the orbit and justify a separation of these two pathologic entities.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002781:Cholesteatoma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D005094:Exophthalmos / Q000175:diagnosis; D005260:Female; D006099:Granuloma / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009916:Orbital Diseases / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D009626:Terminology as Topic; D014057:Tomography, X-Ray Computed