title: Annular plaques on the back and flanks.
abstract: An 86-year-old African American woman sought care for an asymptomatic rash on her back and flanks that she'd had for 14 months. Physical examination of her trunk revealed 3 to 6 cm annular/arcuate plaques with central clearing. The lesions also had a delicate trailing scale behind a slightly raised erythematous rim. The combination of a ring-shaped rash on the patient's torso and a foot infection led us to the diagnosis.
authors.affiliation: Louisiana State University Health Sciences Center, New Orleans, LA, USA.
authors.forename: Sarah
authors.initials: S
authors.lastname: Bankhead
authors.forename: Jeremy
authors.initials: J
authors.lastname: Jackson
authors.forename: Robert
authors.initials: R
authors.lastname: Brodell
mesh_terms: D000369:Aged, 80 and over; D000935:Antifungal Agents / Q000627:therapeutic use; D058070:Asymptomatic Diseases; D003937:Diagnosis, Differential; D004890:Erythema / Q000175:diagnosis* / Q000382:microbiology; D005260:Female; D006801:Humans; D006967:Hypersensitivity / Q000175:diagnosis* / Q000382:microbiology; D009281:Naphthalenes / Q000627:therapeutic use; D014009:Onychomycosis / Q000209:etiology; D000077291:Terbinafine; D014008:Tinea Pedis / Q000209:etiology
chemical_list: D000935:Antifungal Agents; D009281:Naphthalenes; D000077291:Terbinafine