Table 2 Weighted seven-point checklist, from National Institute for Health and Care Excellence guidance. A score of three or more is stated to warrant referral for suspected skin cancer25,26

From: Skin cancer - what general dental practitioners should look for

Major features (scoring two points each)

Minor features (scoring one point each)

Change in size

Irregular shape

Irregular colour.

Largest diameter 7 mm or more

Inflammation

Oozing

Change in sensation.