BCC vs SCC Flashcards
What are some risk factors in the development of SCC?
- excessive exposure to sunlight
- actinic keratoses and Bowen’s disease
- immunosuppression e.g. following renal transplant
- smoking
- long-standing leg ulcers (Marjolin’s ulcer)
What is Bowen’s disease?
A type of intraepidermal SCC. (SCC in situ) it doesn’t invade the deeper layers of skin and thus is like a precusor to SCC.
It is more common in females.
What is this?
Bowen’s disease
What is this?
Squamous cell carinoma
What is this?
Squamous cell carinoma
What is this?
Bowen’s disease
What is this?
A keratoacanthoma.
What is a keratoacanthoma?
- A benign epithelial tumour.
- Looks like a smooth dome shaped papule and rapidly grows to become a crater centrally filled with keratin.
- Treatment - spontaneous regression within 3 months is common. But it can be difficult to exclude SCC so urgent referral for excision is treatment of choice.
What is this?
Squamous cell carcinoma
What is this?
BCC
What is this?
Nodular BCC
What is more likely to metastasize SCC or BCC?
Both rarely metastasize BUT
4% of SCC will metastasize whilst BCC rarely ever.
What is the management option for a BCC?
- surgical removal
- curettage
- cryotherapy
- topical cream: imiquimod, fluorouracil
- radiotherapy
GPs can do it but the crieteria for doing it is so vast, better to refer.
What are the 4 main types of BCC?
- Cystic/Nodular BCC
- Superficial BCC
- Pigmented BCC
- Morphoeic BCC
What is this
Nodular/Cystic BCC
What is the most common type of BCC on the face?
Nodular/Cystic BCC
What is this a picture of?
A pigmented BCC
Brown, blue or greyish lesion
What is this a picture of?
Morphoeic BCC
What is this a picture of?
A superficial BCC
Tends to occur in younger patients
What is this a picture of?
A nodular/ cystic BCC
They may have a central ulcer so its edges appear rolled
What is this a picture of?
Nodular/cystic BCC
Small, shiny, skin coloured or pinkish lump
What is the treatment for this?
This is a keratocanthoma.
Treatment - spontaneous regression within 3 months is common. But it can be difficult to exclude SCC so urgent referral for excision is treatment of choice.
What is this?
Keratocanthoma
