Surgical Treatment of Macrostomia in Tessier Slit No. 7: A Case Report

Summary: Macrostomia also called maxillomandibular cleft or lateral cleft or commissural cleft or transverse cleft is one of the so-called rare facial clefts as opposed to the labioalveolopalatine clefts. They are unilateral in 80% of cases without significant predominance of the affected side and often in a polymalformative setting.

We report the case of a patient with otomandibular syndrome with macrostomy and therefore part of tessier no. 7 clefts.

There are several surgical techniques to treat macrostomia, but for this patient we opted for the Préau method to restore the normal anatomy of a labial corner while respecting the 3 planes: mucosal, muscular and cutaneous. The advantage of this technique is to minimize scarring.