The surgical treatment of malignant melanoma is dependent on early dia
gnosis and a thorough understanding of the options available to patien
ts who present with more deeply invasive lesions. There has been a shi
ft in therapy of primary skin lesions to using narrower (1-2 cm) margi
ns of excision. Decisions regarding treatment of the regional lymph no
des are predicated upon understanding the overall risk of metastatic s
pread and delineating the pattern spread of the malignant cells. The c
oncept of intraoperative lymphatic mapping can greatly aid the clinici
an in deciding (1) which lymph node group is the primary drainage basi
n for any particular area of skin, and (2) which lymph node is the fir
st node to receive lymphatic drainage from any given area (the so-call
ed ''sentinel lymph node.''). Surgical resection of metastases can res
ult in prolongation of survival in carefully selected patients. Copyri
ght (C) 1997 by W.B. Saunders Company.