Facial Plastics Flashcards
(31 cards)
What is the prognosis of malignant melanoma based on?
Tumour thickness
Where does malignant melanoma arise from?
30% develop from pre existing neavus
70% develop in de novo
Risk factors for malignant melanoma
Fair skin Previous atypical naevi Sun exposure FH of melanoma History of melanoma or other skin cancer Weak immune system Increasing age Xeroderma Pigmentosum
What is lentigo maligna?
Melanoma in situ
Acral melanoma is seen on…..
Hands
Feet
The thicker the tumour is…..
The worse it is
What does a PET scan do?
Metabolise glucose
Risk factors for Basal cell carcinoma (BCC)
Immunosuppression
Fair skin
Sun exposure
Inherited
Growth speed of BCC
Slow growing
How much of BCC do we cut out?
90%
What does BCC look like?
Raised pearlea with central exposure
Varies in person
Do BCC usually metastases?
No
Where is the first place SCC metastasises to?
The neck
Where are common sites for SCC?
Pinna
Bald head
Etc
How long is radiotherapy used for skin malignancies?
1 week
What is cryotherapy generally reserved for?
Premalignant condition
What is secondary intention?
The hole will fix itself
Pros of secondary intention
Dont need to intervene
Low risk of infection
Con of secondary intention
Can get scarring
When are skin grafts used?
When struggle to control primarily
How does rotation flaps work?
Rotate the skin around
Gathering loose skin over a big area so that it is tension free
How many rotation flaps would be needed on a scalp?
2
How do transposition flaps work?
Lifting over an adjacent area
Where would bilobed transposition flaps be used?
Where area of skin is tight but looser skin further up
