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Sentinel lymph node status is the most important prognostic factor in patients with melanoma of the scalp
Author(s) -
Cappello Zachary J.,
Augenstein Adam C.,
Potts Kevin L.,
McMasters Kelly M.,
Bumpous Jeffrey M.
Publication year - 2013
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1002/lary.23793
Subject(s) - medicine , breslow thickness , scalp , melanoma , sentinel lymph node , univariate analysis , multivariate analysis , incidence (geometry) , nodular melanoma , lymph node , dermatology , oncology , cancer , breast cancer , physics , cancer research , optics
Objectives/Hypothesis To compare clinicopathologic and prognostic factors associated with scalp melanomas and nonscalp melanomas of the head and neck (H&N). Study Design Post hoc analysis of the database from a multi‐institutional, prospective, randomized study. Methods Clinicopathologic factors were assessed and correlated with survival and recurrence. Univariate and multivariate analysis of prognostic factors affecting disease‐free survival and overall survival were performed. Results Of 405 patients with H&N melanomas ≥1.0 mm Breslow thickness, 109 patients had melanoma of the scalp. All were Caucasian (100%), with most being male (79.5%) with a mean age of 49.8 years. The mean Breslow thickness was 2.4 mm; 25% had signs of ulceration. Sentinel lymph node (SLN) positivity was seen in 20.9% of scalp melanoma patients, and was more likely in younger patients (44.7 vs. 50.8 years, P = .04) and in those with a Breslow thickness of 2 to 4 mm ( P = .005). The incidence of locoregional and distant recurrence were similar. Overall survival for scalp melanoma patients was significantly impacted by SLN positivity ( P = .03), whereas Breslow thickness and ulceration status predicted poorer survival in nonscalp melanoma patients ( P = .005, P < .0001, respectively). Conclusions In the Sunbelt Melanoma Trial, SLN status was the strongest predictor of overall survival in scalp melanoma. Tumor thickness and ulceration correlated with poorer overall survival in nonscalp H&N melanoma. The prognostic significance of SLN status in the H&N may vary with the melanoma site. Level of Evidence 2c.