Medial Sural Artery Musculocutaneous Perforator (MSAP) Flap for Reconstruction of Pharyngoesophageal Defects.

We describe the use of the medial sural artery musculocutaneous perforator (MSAP) flap at our institution. It is a relatively new flap, originally described in 2001 for lower extremity defects, tha...