Keratoacanthoma – Information for GPs
Keratoacanthama is a rapidly evolving skin lesion that resembles squamous cell carcinoma both clinically and histologically.
It usually occurs in sun-damaged skin and typically grows rapidly over 4-6 weeks to produce a dome shaped nodule with central ulceration or a keratin plug looking like a small volcano.
Following this the lesion spontaneously resolves over 4-6 months.
Exclude Red Flag Symptoms
Difficult to distinguish clinically from squamous cell carcinomas
All need referral for excision to either Dermatology or Maxillofacial surgeons under the 2 week rule as cannot exclude an SCC clinically.
Investigations prior to referral
Information to include in referral letter
- Site and size of lesion
- History and duration of complaint
- Outline treatments already advised and tried including effects
- Number of consultations patient has had for this condition in the last 6 months
- Photograph is desirable
- Relevant past medical /surgical history including any family history of cancer
- Current regular medication
- BMI/smoking status