- Nodular or ulcerative – glistening skin coloured papule; central necrosis may leave crusted ulcer with rolled telangiectatic pearly edge.
- Cystic – tense translucent telangiectatic papule/nodule.
- Morphoeic – slowly expanding yellow or white waxy plaque with ill defined edge; may ulcerate; may resemble scar
- Superficial – usually trunk; often multiple; slowly expanding pink/brown scaly plaque with fine ‘whip-cord’ edge
- Pigmented – pigment may be present in any type of BCC.
- Squamous cell carcinoma
- Solar keratosis
- Intradermal naevus
- Small lesions: sebaceous gland hyperplasia, molluscum contagiosum
Indications for referral
- Any lesion suspicious of BCC
- Suspected ‘high risk’ BCC should be all referred to Dermatology (i.e.face or scalp lesion; >2cm diameter; previous BCC; immunosuppressed
- Known ‘high risk’ BCC
- Biopsy-proven: morphoeic or infiltrating pattern, basosquamous morphology, perineural invasion or deep extension below dermis.
Cambridge University Hospitals NHS Foundation Trust Acne Referral Guidelines (June 2010)