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Pseudocyst of auricle - Skin
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Pseudocyst of auricle - Skin

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Contributors: Lisa Altieri MD, Noah Craft MD, PhD, Lindy P. Fox MD, Lowell A. Goldsmith MD, MPH, Michael D. Tharp MD
Other Resources UpToDate PubMed

Synopsis

An auricular pseudocyst is a fluid-filled cavity that develops in the intracartilaginous spaces of the ear. Typically caused by chronic minor trauma, it manifests as a painless fluctuant outer ear swelling.

Auricular pseudocysts occur predominantly in men but can develop in women as well as in children of both sexes. Most cases are unilateral. They are often seen in men who wrestle or box. Some individuals may be predisposed to auricular pseudocysts due to a minor defect in auricular embryogenesis.

Codes

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

SNOMEDCT:
403428002 – Pseudocyst of ear

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Cauliflower ear – Permanent deformity; the result of untreated pseudocyst of the auricle or subperichondrial hematomas.
  • 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.
  • Cellulitis

Best Tests

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Management Pearls

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Therapy

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References

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Last Updated: 07/18/2014
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Pseudocyst of auricle - Skin
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Pseudocyst of auricle : Anti-helical rim of ear, Cyst, Ear, No acute distress, Unilateral, Ear lesion
Clinical image of Pseudocyst of auricle
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