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. 2022 May 1;48(5):486-491.
doi: 10.1097/DSS.0000000000003430. Epub 2022 Mar 15.

Incisional Biopsy Technique Is Associated With Decreased Overall Survival for Cutaneous Melanoma

Walter Liszewski  1   2 , Jacob R Stewart  3 , Nahid Y Vidal  3   4 , Addison M Demer  3   4
Affiliations

Incisional Biopsy Technique Is Associated With Decreased Overall Survival for Cutaneous Melanoma

Walter Liszewski et al. Dermatol Surg. .

Abstract

Background: Previous studies examining melanoma biopsy technique have not demonstrated an effect on overall survival.

Objective: To examine overall survival of patients with cutaneous melanoma diagnosed by shave, punch, incisional, or excisional techniques from the National Cancer Database (NCDB).

Materials and methods: Melanoma data from the 2004 to 2016 NCDB data set were analyzed. A Cox proportional hazards model was constructed to assess the risk of 5-year all-cause mortality.

Results: In total, 42,272 cases of melanoma were reviewed, with 27,899 (66%) diagnosed by shave biopsy, 8,823 (20.9%) by punch biopsy, and 5,550 (13.1%) by incisional biopsy. Both the univariate and multivariate analyses demonstrated that tumors diagnosed by incisional biopsy had significantly (p = .001) lower overall 5-year survival compared with shave techniques (hazard ratio [HR] = 1.140, 95% confidence interval [CI] 1.055 to 1.231). We found no difference (p = .109) between shave and punch biopsy techniques (HR 1.062, 95% CI 0.987-1.142) or between punch and incisional techniques (HR 1.074, 95% CI 0.979-1.177, p = .131).

Conclusion: Incisional biopsies were associated with decreased overall 5-year survival in the NCDB. No difference was observed between shave and punch biopsy techniques. These findings support current melanoma management guidelines.

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