Annals of Surgical Oncology, Vol 6, Issue 3 263-271, Copyright © 1999 by Society of Surgical Oncology

ARTICLES

Does the extent of operation influence the prognosis in patients with melanoma metastatic to inguinal nodes?

G. B. Mann and D. G. Coit
Department of Surgery, Memorial Sloan-Kettering Cancer Center, New York, New York 10021, USA.

BACKGROUND: The role of pelvic lymphadenectomy in melanoma metastatic to the superficial inguinal region remains controversial. Some researchers advocate aggressive surgical management, whereas others feel that outcome depends more on extent of disease rather than extent of treatment. We reviewed our recent experience to investigate possible therapeutic effects of extended surgery. METHODS: We performed a retrospective clinical and pathological review of 227 consecutive patients having superficial (SLND) or combined inguinal lymphadenectomy (CLND) for cutaneous melanoma. RESULTS: A total of 174 SLNDs and 53 CLNDs were performed. Overall 5-year survival for node-positive patients was 39%. Survival for patients with positive superficial nodes was 40%; for those with positive deep nodes it was 35% (P = ns). In node-positive patients, number and size of involved lymph nodes and the presence of extranodal spread, failure to receive adjuvant therapy, and tumor ulceration were associated with poorer prognosis. Extent of surgery was not associated with differential survival, although CLND patients had worse pathological features. Subgroup analysis showed no significant survival difference between SLND and CLND. Conclusions: Some patients with deep nodal involvement apparently are cured by CLND. However, it is the biology of the disease and not the extent of surgery that primarily governs outcome. Patients with clinical or radiological evidence of pelvic nodal disease without evidence of systemic disease should have a CLND, but we find no evidence to support CLND if the pelvic nodes are clinically and radiologically negative.

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