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Improving outcomes for people with skin tumours including melanoma

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<strong>Improving</strong> Outcomes <strong>for</strong><br />

People <strong>with</strong> Skin Tumours<br />

<strong>including</strong> Melanoma<br />

Appendix 6<br />

High-risk squamous cell carcinoma<br />

Those that are high risk have a high recurrence rate after treatment<br />

and may metastasise.<br />

Histological features<br />

Poorly differentiated, perineural invasion, depth greater<br />

than 4 mm or extending to subcutaneous tissue (Clark<br />

level 5)<br />

Sites<br />

Lip, ears, non-sun-exposed sites, e.g. penis, scrotum and<br />

soles of feet; in areas of previous injury, e.g. burns,<br />

irradiation and chronic ulcers<br />

Other factors<br />

Greater than 2 cm diameter, immunosuppression,<br />

previously treated lesion<br />

Histology<br />

The study of body tissue and cells by examination under a<br />

microscope to find out what type of body tissue it is, or if a cancer,<br />

what type of body cells the cancer cells most look like.<br />

A6<br />

Histopathologist<br />

A doctor who specialises in examining tissue samples microscopically<br />

in order to make a diagnosis and ensure tumour excision is complete.<br />

Histopathology<br />

The study of microscopic changes in diseased tissues.<br />

Hyfrecation<br />

A surgical method that involves using an electrical current to burn a<br />

<strong>skin</strong> lesion or tumour.<br />

Immunocompromised<br />

Having a weakened immune system as a result of certain diseases or<br />

treatments.<br />

Immunophenotyping<br />

A process used to identify cells, based on the types of antigens or<br />

markers on the surface of the cell. This process is used to diagnose<br />

specific types of leukaemia and lymphoma by comparing the cancer<br />

cells to normal cells of the immune system.<br />

Immunosuppression<br />

Suppression of the body’s immune system and its ability to fight<br />

infections or disease. Immunosuppression may be deliberately<br />

induced <strong>with</strong> drugs. It may also result from certain diseases such as<br />

lymphoma or from anticancer drugs.<br />

164 National Institute <strong>for</strong> Health and Clinical Excellence

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