Contents

SynopsisCodesLook ForDiagnostic PearlsDifferential Diagnosis & PitfallsBest TestsManagement PearlsTherapyReferences

Information for Patients

View all Images (9)

Epidermoid cyst - Anogenital in
See also in: Overview,Hair and Scalp
Other Resources UpToDate PubMed

Epidermoid cyst - Anogenital in

See also in: Overview,Hair and Scalp
Contributors: Susan Burgin MD, Belinda Tan MD, PhD, Lowell A. Goldsmith MD, MPH
Other Resources UpToDate PubMed

Synopsis

Epidermoid cysts or epidermal inclusion cysts are also known as sebaceous cysts, which is a misnomer. These asymptomatic, semi-solid cysts are filled with keratin. The cysts are lined by keratinizing epithelium that is responsible for the soft, "cheesy" keratin contents.

These cysts are common on the scrotum but are rarely found on the penis. The cysts can be located almost anywhere, and besides the scrotum, common places include the face, neck, scalp, or trunk.

The pathogenesis of genital epidermoid cysts is unknown. It is hypothesized that some epidermoid cysts may originate from median raphe cysts.

Codes

ICD10CM:
L72.0 – Epidermal cyst

SNOMEDCT:
419893006 – Epidermoid cyst

Look For

Subscription Required

Diagnostic Pearls

Subscription Required

Differential Diagnosis & Pitfalls

The presence of multiple epidermoid cysts, and a family history of the same, should lead to the consideration of Gardner syndrome, a heritable disorder associated with gastrointestinal malignancy.

Best Tests

Subscription Required

Management Pearls

Subscription Required

Therapy

Subscription Required

References

Subscription Required

Last Reviewed:05/08/2017
Last Updated:06/12/2017
Copyright © 2023 VisualDx®. All rights reserved.
Epidermoid cyst - Anogenital in
See also in: Overview,Hair and Scalp
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.
Copyright © 2023 VisualDx®. All rights reserved.