BCC and SCC Flashcards
1
Q
What is another name for Basal Cell carcinomas? (BCC)
A
rodent ulcers
2
Q
Metastases are extremely rare in BCC. TRUE/FALSE?
A
TRUE
BCCs = slow-growth and local invasion
3
Q
Describe the main features of a nodular BCC
A
- On sun-exposed sites (head/face/neck)
- pearly, flesh-coloured papule with telangiectasia
- may later ulcerate leaving a central ‘crater’
4
Q
Management of BCC
A
- surgical removal
- curettage
- cryotherapy
- topical cream: imiquimod, fluorouracil
- radiotherapy
5
Q
What percentage of SCCs metastasise?
A
Metastases are rare
=> 2-5% of patients.
6
Q
Risk factors for SCC
A
- sunlight/ UVA therapy exposure
- actinic keratoses/ Bowen’s disease
- immunosuppression
- smoking
- chronic leg ulcers
- genetic conditions e.g. xeroderma pigmentosum, oculocutaneous albinism
7
Q
Features of SCC
A
- sun-exposed sites
- rapidly expanding, painless, ulcerated nodules
- cauliflower-like appearance
- areas of bleeding
8
Q
Treatment of SCC
A
Surgical excision
9
Q
What size should the margins be when an SCC is excised?
A
4mm margins if lesion <20mm 6mm margins if lesion >20mm
10
Q
What surgical technique can be used to get clear margins in areas which are cosmetically important?
A
Moh’s Microscopic Surgery
- each slice is taken and looked at under microscope to look for clear margin
11
Q
What factors create a poorer prognosis in SCC?
A
- large diameter >20mm or depth >4mm
- poorly differentiated cells
- immunosuppressed patient