By Tord Høgsand and Magnus Sundstrøm Skin cancer By Tord Høgsand and Magnus Sundstrøm
Types of skin cancer Basal cell carcinoma Shape: Raised, smooth Basal layer Sun-exposed skin Most common Least deadly
Types of skin cancer Squamous cell carcinoma Shape: Red, crusted Ulceration and bleeding Squamous layer Sun-exposed skin Rapidly growing Second most common More deadly than BCC
Types of skin cancer Melanoma Shape: Asymmetrical, irregular border Develop in melanocytes > 6 mm in diameter Brown/black Most deadly Random distribution ”ABCDE” 23rd most common cause of cancer deaths worldwide
Risks and causes Exposure to UV-light Chronic non-healing wounds Sun light, sun beds Chronic non-healing wounds Can develop into squamous cell carcinoma Weakened immune system Genetic factors Moles Numerous and abnormal
Prevention Reduce exposure to sun light, avoid sunburning Use of sunscreen Protective clothing Sunglasses, hats
Prognosis and treatment BCC and SCC – less than 0,5 % Melanoma – 15-20 % Depends on the time of diagnosis Surgical removal Cryotherapy Radiotherapy In case of spreading
Epidemiology 80.000 deaths per year (2010) BCC & SCC – 40 % Melanoma – 60 % Australia, Southern Africa, Northern Europe
Mortality rates
Mortality rates in Norway
Sources http://www.stylingyou.com.au/2012/11/spf-50-sunscreen-now-in-australia/ http://www.ncbi.nlm.nih.gov/pubmed/18348450 http://www.mayoclinic.com/health/melanoma/MM00788 http://www.mayoclinic.com/health/skin-cancer/DS00190 http://www.skincancer.org/skin-cancer-information/basal-cell-carcinoma http://www.hudlegekontoret.no/kategorier/sykdommer/foeflekkreft http://en.wikipedia.org/wiki/Skin_cancer#Basal_cell_carcinoma