[Accomplishments of tumor surgery in tumors of the skin].

Skin tumours are classified by potential for causing disease and skin layer involvement. Primary diagnosis of skin tumours is established by escision biopsy, i.e. narrow excision of the tumour-adjacent tissue. Depending on the histological results, a secondary excision may be required. In this procedure a malignant tumour is assumed during the primary excision, which is performed according to "relaxed skin tension lines." Besides the fundamental interconnection of diagnostic and therapeutic principles the cosmetic-aesthetic aspects of skin tumour treatment are of utmost importance. Every operation performed for skin tumour follows the rules of plastic surgery.