[Indications for preventive regional lymphadenectomy in primary melanoma of the skin of the trunk].

A retrospective analysis of clinico-morphological data of 222 patients with primary cutaneous melanoma of the trunk was made. General results of 5-year survival of the patients after a radical surgical treatment was 56.3 +/- 3.3%. Five clinico-morphological risk factors of the regional metastazing of the primary cutaneous melanoma of the trunk were established. Prophylactic regional lymphadenectomy along with a wide dissection of the primary tumor is recommended by the authors for patients with primary melanomas of the trunk skin having 3 and more risk factors of regional metastazing.