Recurrence rate and survival implications of surgical margins in patients with acral melanoma. Is a wide margin necessary?

Introduction: Appropriate size of resection margins in acral melanoma is not clearly established.

Objective: To investigate whether narrow-margin excision is appropriate for thick acral melanoma.

Methods: Three-hundred and six patients with acral melanoma were examined.

Prognosis of polypoid melanoma: a comparative study with non-polypoid melanomas.

Polypoid melanoma is considered an exophytic and frequently non-pigmented variant of nodular melanoma with an adverse prognosis; however, very few studies have been published about it with contradictory results. Therefore, our objective was to determine the prognostic value of this configuration in melanomas. A transversal retrospective study of 724 cases was analyzed according to the main configuration (polypoid vs.