Basal Cell Carcinoma Flashcards

1
Q

Define Basal Cell Carcinoma?

A

Commonest form of skin malignancy, also known as a rodent ulcer

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2
Q

What is the main risk factor for basal cell carcinoma?

A

Prolonged sun exposure or UV radiation

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3
Q

What is basal cell carcinoma seen in?

A

Gorlin’s Syndrome

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4
Q

What are some of the other rsik factors for basal cell carcinoma?

A

Photosensitising patch
Tar
Arsenic

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5
Q

What is the epidemiology of Basal Cell Carcinoma?

A
Common in those with fair skin
Common in areas of high sunlight exposure 
Common in the elderly 
Rare before the age of 40yrs 
Lifetime risk in Caucasians = 1 in 3
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6
Q

What is the presenting symptoms of Basal Cell Carcinoma?

A

A chronic slowly progressive skin lesion

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7
Q

Where are lesions usually found in basal cell carcinoma?

A

Face
Scalp
Ears
Trunk

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8
Q

What are the Nodulo-Ulcerative (most common) signs of basal cell carcinoma on physical examination?

A

Small glistening translucent skin over a coloured papule
Slowly enlarges
Central ulcer with raised pearly edges
Fine telangiectasia over the tumour surface
Cystic change in larger lesions

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9
Q

What is telangiectasia?

A

Visible small linear red lines on skin caused by widened venules

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10
Q

What are the Morphoeic signs of basal cell carcinoma on physical examination?

A

Expanding
Yellow/white waxy plaque with an ill-defined edge
More aggresive than nodulo-ulcerative

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11
Q

What are the superficial signs of basal cell carcinoma on physical examination?

A

Most often on trunk

Multiple pink/brown scaly plaques with a fine edge expanding slowly

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12
Q

What are the pigmented signs of basal cell carcinoma on physical examination?

A

Specks of brown or black pigment may be present in any BCC

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