Cholesteatoma of the frontal sinus.
D000328:Adult; D002781:Cholesteatoma / Q000175:diagnosis* / Q000209:etiology; D003937:Diagnosis, Differential; D005626:Frontal Sinus; D006801:Humans; D008297:Male; D009078:Mucocele / Q000175:diagnosis; D010254:Paranasal Sinus Diseases / Q000175:diagnosis / Q000209:etiology