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Keratoacanthoma centrifugum marginatum.

Honglin Xiao, Perry B Hooper, Brandon A Umphress

  • 1Department of Dermatology, Indiana University School of Medicine, Indianapolis, IN. jwolvert@indiana.edu.

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|April 18, 2021
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Summary
This summary is machine-generated.

Keratoacanthoma centrifugum marginatum (KCM) is a rare skin growth typically found on sun-exposed areas. This case report details a KCM presenting as an exophytic, crateriform plaque in a 61-year-old male patient.

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Area of Science:

  • Dermatology
  • Oncology

Background:

  • Keratoacanthoma centrifugum marginatum (KCM) is an uncommon variant of keratoacanthoma.
  • KCM typically presents on sun-exposed skin with peripheral expansion and raised, hyperkeratotic borders, often with central clearing and atrophy.

Observation:

  • This report describes a KCM case in a 61-year-old man.
  • The lesion manifested as an exophytic, crateriform plaque.

Findings:

  • KCM is generally benign with a low risk of metastasis.
  • Reported sizes vary significantly, from 5.0cm×5.0cm to 20.0cm×14.0cm.

Implications:

  • Understanding KCM's clinical characteristics aids in diagnosis.
  • Treatment options for KCM include surgical excision, oral retinoids, and intralesional chemotherapy.