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Related Experiment Videos

Keratoacanthoma observed.

Richard W Griffiths1

  • 1Department of Plastic Surgery, Northern General Hospital, Herries Road, Sheffield S5 7AU, UK. richard.griffiths@sth.nhs.uk

British Journal of Plastic Surgery
|August 17, 2004
PubMed
Summary
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Observation is a viable management strategy for solitary keratoacanthoma, a benign skin lesion. This approach avoids unnecessary surgery and confirms that keratoacanthomas resolve without poor scarring.

Area of Science:

  • Dermatology
  • Oncology

Background:

  • Keratoacanthoma (KA) management typically involves surgical excision due to differentiation challenges with squamous cell carcinoma.
  • Spontaneous resolution of KA is rarely documented, with limited photographic evidence.

Purpose of the Study:

  • To evaluate the efficacy and outcomes of observational management for solitary keratoacanthoma.
  • To document the natural history and spontaneous resolution patterns of keratoacanthoma.

Main Methods:

  • Clinical diagnosis of 19 patients with solitary keratoacanthoma based on history and appearance.
  • Sequential photographic documentation of 14 observed lesions until resolution.
  • Excision of 5 lesions due to growth pattern concerns or patient preference.

Main Results:

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  • The commonest site was the hand (5 cases); mean age was 65 years.
  • Mean time to resolution was 27 weeks, with no recurrences or need for scar revision.
  • Observational management confirmed spontaneous resolution without significant scarring.

Conclusions:

  • Observational management is a safe and effective alternative to excision for solitary keratoacanthoma.
  • This study, the largest published to date, supports the natural history of KA resolution.
  • The findings challenge previous claims regarding poor scar quality after keratoacanthoma resolution.