Transfer of a free lateral thoracic flap in a child.

We believe the axillary (lateral thoracic) flap should be one of the free flaps of choice in children, because it has vessels of 1.5 mm or more in diameter--thus making it possible for the donor and recipient vessels to be approximately the same diameters. This makes the suturing easier and helps to ensure a good result. The patency rate increases as the diameter of the vessels to be anastomosed increases. We present a successful case in which this flap was used in an 8-year-old boy.