This syndrome is made up of a constellation of congenitally malformed facial structures which arises from the first and second branchial arches. A case of hemifacial microsomia, with the physical characteristics of unilateral left underdevelopment of the external and middle ear, mandible and zygoma is presented. The treatment took place in two stages: Firstly the auricle was reconstructed with the method of tissue expander and silicone frame and secondly the mandibular prognathism and laterognathism with sagittal splitting was corrected. We present our case and the results that have been gained by combining the modalities of plastic and orthognathic surgery.