title: Relapsing polychondritis: a case diagnosed by direct immunofluorescence and coexisting with pseudocyst of the auricle.
abstract: A case of relapsing polychondritis with perichondrial IgG and C3, dermoepidermal IgG, and a coexisting pseudocyst of the auricle is reported. The use of direct immunofluorescence testing in establishing a diagnosis of relapsing polychondritis and the expected findings are reviewed. In some cases direct immunofluorescence may allow a diagnosis of relapsing polychondritis before clinical criteria or a routine histologic evaluation suggests a definite diagnosis.
authors.affiliation: Department of Dermatology, Cleveland Clinic Foundation, OH 44195-5131.
authors.forename: T N
authors.initials: TN
authors.lastname: Helm
authors.forename: R
authors.initials: R
authors.lastname: Valenzuela
authors.forename: S
authors.initials: S
authors.lastname: Glanz
authors.forename: L
authors.initials: L
authors.lastname: Parker
authors.forename: J
authors.initials: J
authors.lastname: Dijkstra
authors.forename: W F
authors.initials: WF
authors.lastname: Bergfeld
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D004427:Ear Diseases / Q000175:diagnosis; D004431:Ear, External; D004814:Epidermal Cyst / Q000175:diagnosis*; D005455:Fluorescent Antibody Technique; D006801:Humans; D008297:Male; D011081:Polychondritis, Relapsing / Q000175:diagnosis*