Anatomical basis of a new naso-labial island flap.

We describe a nasolabial island flap with a proximal base. This anatomical study confirms the interest of a proximal base especially with regard to venous return. As opposed to classical naso-labial flaps with subcutaneous pedicle, it has a vascularization of musculo-cutaneous type which allows a greater degree of mobility and reliability. This flap is an effective therapeutic option in surgery for skin defects of the face.