Question | Answer |
Epidemiology of Melanoma | 10/100,000
Incidence increasing
Female:Male 2:1
common sites women --> lower leg
men --> back |
Risk factors? | Fair complexion
Previous history
Family history
Increase in number of dysplastic moles |
Characteristics of Basal Cell carcinoma? | 40's and upwards
Slow irregularly growing
Doesn't metastasise but locally invades
80% on head and neck
Curable and treatable |
4 types of BBC? | Nodular - pearly, crusty, telangectasia, ulcerate, rolled edge, on face
Superficial - on trunk and shoulders, scaly, pink/red
Morphoeic - waxy, scarlike, over 50's appear 'stuck on', spread down nerves
Pigmented - grey |
Squamous Cell Carcinoma?
Bowen's disease? | Over production of keratin --> yellow deposits.
Often on backs of hand/bald head
Firmer/harder/can be painful
Bowens disease = SCC in situ. |
Malignant melanoma?
Checklist system? | Uncontrolled growth of pigment cells.
Initially flat and later raised from skin.
Glasgow 7 point checklist:
Change in size, change in shape, irregular colour. + Minor features bleeding, oozing/inflammation, bigger than 7mm, change in sensation. |
Treatment for skin cancer? | Excission biopsy to confirm.
Surgical excission with wide margins of 4mm. |
ABCDE of melanoma? | Assymetry, Border irregularity, Colour variation, Diametre more than 7mm, Evolves over time. |
Prognosis of melanoma? | Good if less than 1mm.
Half die within 5 years if over 4mm. |