Expanded unilateral forehead flap (sail flap) for coverage of opposite forehead defect.

This report details our experience with five patients who had skin defects of their forehead that were covered with an expanded unilateral forehead flap from the contralateral side that we call the sail flap. Skin expansion provides an ideal thin flap for the forehead aesthetic unit. The viability of the sail flap is sufficient through expansion, and it is available in suitable size and shape for the defect. The donor site is minimal and well accepted because the scar coincides with the hairline.