Tumours in Iceland. I. Malignant tumours of skin--a histological classification.
Four hundred and eighty-five primary malignant skin tumours submitted for histological diagnosis in Iceland during the period 1955--1974 were typed according to the WHO histological classification. The incidence of these tumours, age-adjusted to the "World" population, was 12.6/100.000 in males and 11.0/100.000 in females. These are very low figures for a white population. The distribution by type among males was: basal cell carcinoma 66.8%, squamous cell carcinoma 22%, malignant melanoma 7.2% and others 4%. Among females: basal cell carcinoma 66.9%, malignant melanoma 20.8%, squamous cell carcinoma 10.2% and others 2.1%. The exposed areas of the body were affected much more frequently than other areas. The results support the theory that intensity of solar radiation is of major aetiological significance.
D000230:Adenocarcinoma / Q000453:epidemiology / Q000473:pathology; D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002280:Basal Cell Carcinoma / Q000453:epidemiology / Q000473:pathology; D002294:Carcinoma, Squamous Cell / Q000453:epidemiology / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D005260:Female; D005354:Fibrosarcoma / Q000453:epidemiology / Q000473:pathology; D006801:Humans; D007055:Iceland; D007223:Infant; D008297:Male; D008545:Melanoma / Q000453:epidemiology; D008875:Middle Aged; D009381:Neoplasms, Radiation-Induced; D012514:Sarcoma, Kaposi / Q000453:epidemiology / Q000473:pathology; D012737:Sex Factors; D012878:Skin Neoplasms / Q000453:epidemiology* / Q000473:pathology; D013472:Sunlight