Eccentric hyperbola: A new modified cutaneous scar re-excision on convex surfaces

Abstract

“Re-excision of scar” is a common procedure following diagnostic or therapeutic excision of skin cancer cutaneous lesions. With the conventional techniques, skin tension on convex surfaces results in deformity and elongated scars. We present a modified technique for cutaneous scar re-excision that designed along the skin tension lines to enable improved outcomes; the “eccentric hyperbola”. We demonstrate the effectiveness and outcomes of this modification using geometrical regression analysis. This modified technique proves to demonstrate benefits over conventional elliptical excisions on convex surfaces resulting in reduction final scar length and to our experience, enables improved cosmetic outcomes.

Keywords

• wide local excision
• cutaneous surgery
• scar re-excision