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Keratoacanthoma

Reviewed 06/2019
 


BASICS

DESCRIPTION

  • Most common is a solitary, rapidly proliferating, dome-shaped, erythematous or flesh-colored papule or nodule with a central keratinous plug, typically reaching 1 to 2 cm in diameter...

DIAGNOSIS

HISTORY

  • Lesion begins as a small, solitary, pink macule that undergoes a rapid growth phase; classically reaching a diameter of 1 to 2 cm; size may vary.

  • Once the proliferative stage has subsi...

TREATMENT

  • Treatment of choice is an excisional procedure plus electrodessication and curettage (ED&C); however, there are many treatment options available (2)[C].

  • Aggressive tumors (>2 cm) or le...

ONGOING CARE

FOLLOW-UP RECOMMENDATIONS

After the surgical site has healed or lesion has resolved, patient should be seen every 6 months due to increased risk of developing new lesions or skin cancers, ...

REFERENCES

1
Kwiek B, Schwartz RA. Keratoacanthoma (KA): an update and review. J Am Acad Dermatol.  2016;74(6):1220–1233. [View Abstract on OvidMedline]
2
Savage JA, Maize JCSr. Keratoacanthoma clin...

ADDITIONAL READING

CODES

ICD10

  • D23.9 Other benign neoplasm of skin, unspecified

  • D48.5 Neoplasm of uncertain behavior of skin

  • L85.8 Other specified epidermal thickening

ICD9

  • 216.9 Benign neoplasm of skin, site unspecified

  • 238....

CLINICAL PEARLS

  • Suspect KA with a solitary, dome-shaped, erythematous or flesh-colored papule or nodule with a central keratinous plug.

  • If KA is in the differential diagnosis, elicit time frame of onse...

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