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Cyst, Sebaceous (Epidermal Cyst)

Patrick M. Zito, DO, PharmD, RPh, FASCP, FRSPH, Thomas Mazzoni, DO, FAOCO, RPh and Richard Scharf, DO, FACOO Reviewed 06/2018
 


BASICS

DESCRIPTION

  • The term “sebaceous cyst” is a misnomer.

  • The correct nomenclature is “epidermoid cyst,” as these structures have no sebaceous gland component (1).

  • Also known as epidermal inclusion cys...

DIAGNOSIS

HISTORY

  • Mass slowly growing over time

  • Recent trauma

  • “Cheese-like” material expressed from cyst, often with a rancid odor

  • Epidermoid cyst appearance before puberty suggests an alternative diagnos...

TREATMENT

Sebaceous cysts are generally benign and frequently no therapy is indicated. If removal is desired or indicated, every effort should be made to remove the entire cyst wall to prevent recurre...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

  • Uncomplicated sebaceous cysts do not require regular follow-up.

  • Any recurrent cysts should be excised using a traditional elliptical incision.

  • Solid or atypical mas...

REFERENCES

1
Luba MC, Bangs SA, Mohler AM, et al. Common benign skin tumors. Am Fam Physician.  2003;67(4):729–738. {L-End} [View Abstract on OvidMedline]
2
Liau JL, Altamura D, Ratynska M, et al. ...

ADDITIONAL READING

Lee HE, Yang CH, Chen CH, et al. Comparison of the surgical outcomes of punch incision and elliptical excision in treating epidermal inclusion cysts: a prospective, randomized study...

CODES

ICD10

  • L72.3 Sebaceous cyst

  • L72.0 Epidermal cyst

ICD9

706.2 Sebaceous cyst 

SNOMED

  • 419603000 epidermoid cyst of skin (disorder)

  • 446936008 epidermoid cyst of skin of face (disorder)

  • 447231001 Epidermoid c...

CLINICAL PEARLS

  • Sebaceous cysts (epidermoid cysts) are generally benign and do not warrant routine excision.

  • Indications for cyst removal include cosmesis, inflammation, concern for underlying malignan...

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