ContentsSynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferencesView all Images (4)
Pseudocyst of auricle
Other Resources UpToDate PubMed

Pseudocyst of auricle

Contributors: Jon Kibbie PhD, Lisa Altieri MD, Susan Burgin MD
Other Resources UpToDate PubMed

Synopsis

A pseudocyst of auricle is a benign, fluid-filled cavity that develops in the intracartilaginous spaces of the ear. It is typically unilateral and thought to be caused by chronic minor trauma with a possible contribution of prior embryologic dysplasia of the auricular cartilage. An auricular pseudocyst usually manifests as a painless, fluctuant outer ear swelling, but minor discomfort and inflammation have been reported. The vast majority of cases are unilateral; bilateral cases, either synchronous or asynchronous, also occur.

Auricular pseudocysts occur predominantly in men (average age of 35-40 years) but can develop in women as well as in children of both sexes.

Codes

ICD10CM:
H93.8X9 – Other specified disorders of ear, unspecified ear

SNOMEDCT:
403428002 – Pseudocyst of ear

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

  • Cauliflower ear – Permanent deformity; the result of untreated pseudocyst of auricle or subperichondrial hematoma.
  • Relapsing polychondritis – Ear will be uniformly pink or red, and the lobe, which contains no cartilage, will be spared.
  • Chondrodermatitis nodularis helicis – Tender, small, erythematous nodule or nodules, sometimes with scale or crusting at the center of the lesion.
  • Keloid(s) on the ear, particularly on the earlobe, in individuals who have had their ears pierced.
  • Subperichondrial hematoma secondary to trauma.
  • Cellulitis

Best Tests

Subscription Required

Management Pearls

Subscription Required

Therapy

Subscription Required

References

Subscription Required

Last Reviewed:11/19/2020
Last Updated:11/23/2020
Copyright © 2021 VisualDx®. All rights reserved.
Pseudocyst of auricle
Pseudocyst of auricle
Clinical image of Pseudocyst of auricle
A reddish bosselated nodule of the ear.
Copyright © 2021 VisualDx®. All rights reserved.