Pre-malignant tumours

Dr Christophe Hsu – dermatologist. Geneva, Switzerland

Congenital moles

• These are moles that are present at birth.
• Such moles vary in sizes.
• They are usually present on the trunk.
• These congenital moles may develop into cancers (melanoma). Therefore, they should be removed whenever possible. The larger the congenital mole, the higher the risk of cancer developing later on.
• Congenital naevi may be associated with other malformations.

Actinic keratosis

• These lesions are seen on the sun-exposed skin especially on the face, upper chest, back and forearms.
• They appear as scaly reddish or brown patches on the skin.
• Numerous lesions may occur at the same time.
• If left untreated, they can go on to develop into skin cancers.

Actinic keratosis

Treatment of Pre-malignant growths

• These can easily be destroyed using liquid nitrogen (like dry-ice) or anti-cancer ointments or electrosurgery or excision surgery or laser surgery.
• If you have a skin tumour, it is advisable to check it out with your doctor. He can then advise you on the diagnosis and action to be taken.

Contributors:

Dr Christophe HSU – dermatologist. Geneva, Switzerland

National Skin Centre. Singapore