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Epidermoid cyst - Anogenital in
See also in: Overview,Hair and Scalp
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Epidermoid cyst - Anogenital in

See also in: Overview,Hair and Scalp
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Contributors: Susan Burgin MD, Belinda Tan MD, PhD, Mary Gail Mercurio MD
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Synopsis

Epidermoid cyst : Cyst, Face, Neck, Scalp, Smooth nodule, Trunk
An epidermoid cyst, also known as a sebaceous cyst (a misnomer), is a semi-solid cyst filled with keratin. The cysts are lined by keratinizing epithelium that is responsible for the soft "cheesy" keratin contents. The epidermal cyst is a common lesion that can arise on the face, trunk, extremities, or vulva. The cyst wall is stratified squamous epithelium, and the content is formed of macerated keratin and lipid-rich debris. The lesion may be asymptomatic, but rupture can result in significant discomfort.

Codes

ICD10CM:
L72.0 – Epidermal cyst

SNOMEDCT:
419893006 – Epidermoid cyst

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

Best Tests

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Therapy

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Last Reviewed:05/08/2017
Last Updated:06/13/2017
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Epidermoid cyst - Anogenital in
See also in: Overview,Hair and Scalp
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A medical illustration showing key findings of Epidermoid cyst : Cyst, Face, Neck, Scalp, Smooth nodule, Trunk
Clinical image of Epidermoid cyst - imageId=3463753. Click to open in gallery. caption: 'A close-up of a yellowish nodule with a central keratin-filled punctum.'
A close-up of a yellowish nodule with a central keratin-filled punctum.

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