To reconstruct the subsequent defects after resection of a unilateral large forehead lesion, we devised a revised method, "expanded narrow subcutaneous-pedicled island forehead flap." After unilateral forehead skin was expanded by a tissue expander, the flap was designed on the upper half of the expanded forehead skin nourished by the subcutaneous adipomuscular pedicle, including the supratrochlear or supraorbital artery. The elevated flap was then transposed or rotated 180 degrees toward the defect. The donor site was closed with upward advancement of the lower half of the expanded skin. Four patients were treated with this method. The flaps survived completely without serious complications, and acceptable results were obtained in all patients. This method has the advantage of increased freedom of flap design and transfer, providing an effective use of unaffected skin, less scars left on the forehead, and less formation of the dog-ear compared with the conventional procedure.