title: Mastoiditis mimicry: retro-auricular cellulitis related to otitis externa.
abstract: Retro-auricular cellulitis associated with otitis externa is now the great mimicker of mastoiditis. It may be the most common cause of this specific cellulitis/auricular protrusion when it is associated with otitis externa. This column presents six cases of children who presented with peri-auricular redness, four of whom had protuberant ear and retro-auricular cellulitis.
authors.forename: Stan L
authors.initials: SL
authors.lastname: Block
mesh_terms: D000293:Adolescent; D002481:Cellulitis / Q000175:diagnosis* / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008417:Mastoiditis / Q000175:diagnosis*; D010032:Otitis Externa / Q000150:complications* / Q000175:diagnosis