Non-melanoma skin cancers Flashcards Preview

Dermatology > Non-melanoma skin cancers > Flashcards

Flashcards in Non-melanoma skin cancers Deck (9)
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1
Q

What are the two types of non-melanoma skin cancers?

A

Squamous cell carcinoma

Basal cell carcinoma

2
Q

Features of BCC

A

Usually present as a translucent, slow growing lump or a non-healing ulcer.
Painless
Visible aborising (branching) blood vessels
May invade locally but unlikely to metastasise.
Can present as a scaly plaque.
Rodent ulcer (inner ulceration)

3
Q

Features of SCC

A

Can present as warty, crusty or non healing ulcers.
Usually on sun-damaged skin
Fast growing
Painful
Poor prognosis and likely to metastasise.
Precursor lesions such as Actinic keratosis and Bowens disease.

4
Q

Actinic Keratosis

A

Precancerous skin lesions

5
Q

Bowens disease

A

Erythamatous plaque.

6
Q

Xeroderma Pigmentosum

A

Sun damaged cells need nucleotide excision repair (NER) to fix damaged DNA

7
Q

Symptoms of xeroderma Pigmentosum

A

Photosensitivity
Neurological degeneration
Increase risk of other cancers
skin cancers on UV exposed sites.

8
Q

Albinism

A

Lack of melanocytes or melanocytes that can’t produce pigment.

9
Q

Naevoid Basal cell carcinoma (Gorlin’s) syndrome

A

Autosomal dominant familial cancer syndrome

Major features include- palmar pits, jaw cysts, ectopic calcification, early onset/multiple BCC’s.