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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
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Skin cancer By Tord Høgsand and Magnus Sundstrøm
Types of skin cancer • Basal cellcarcinoma • Shape: Raised, smooth • Basal layer • Sun-exposed skin • Most common • Least deadly
Types of skin cancer • Squamouscellcarcinoma • Shape: Red, crusted • Ulceration and bleeding • Squamouslayer • Sun-exposed skin • Rapidlygrowing • Second most common • More deadlythan BCC
Types of skin cancer • Melanoma • Shape: Asymmetrical, irregular border • Develop in melanocytes • > 6 mm in diameter • Brown/black • Most deadly • Randomdistribution • ”ABCDE” • 23rd most commoncauseof cancer deathsworldwide
Risks and causes • Exposure to UV-light • Sun light, sun beds • Chronicnon-healingwounds • Candevelopintosquamouscellcarcinoma • Weakened immune system • Genetic factors • Moles • Numerous and abnormal
Prevention • Reduceexposure to sunlight, avoidsunburning • Useofsunscreen • Protectiveclothing • Sunglasses, hats
Prognosis and treatment • Prognosis • BCC and SCC – less than 0,5 % • Melanoma – 15-20 % • Dependsonthe time ofdiagnosis • Surgicalremoval • Cryotherapy • Radiotherapy • In case ofspreading
Epidemiology • 80.000 deaths per year (2010) • BCC & SCC – 40 % • Melanoma – 60 % • Australia, Southern Africa, NorthernEurope
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