Dianna M. Ehrhart Bardo MD, Presenter: Speakers Bureau, Koninklijke Philips Electronics NV

Thomas Gibson BS, Abstract Co-Author: Nothing to Disclose

Ryne Didier MD, Abstract Co-Author: Nothing to Disclose

Jeffrey Michael Pollock MD, Abstract Co-Author: Nothing to Disclose

Elizabeth Thomason Kutella MD, Abstract Co-Author: Nothing to Disclose

John Kullnat, Abstract Co-Author: Nothing to Disclose

Tyler Andrews, Abstract Co-Author: Nothing to Disclose

Nathan R. Selden MD, Abstract Co-Author: Nothing to Disclose

Anna Kuang MD, Abstract Co-Author: Nothing to Disclose

The purpose of this poster is to describe and illustrate the radiographic and surgical anatomy of facial clefts based on the clinically relevant Tessier classification system which is based on a numerical system from 0-14. Information given to the observer will teach embryology, epidemiology and key points to describe in radiology reports.

Facial clefts occur due to complete/partial failure of embryonic facial plates to merge/fuse. Complications of facial clefts necessitate early surgical repair. Tessier described an anatomical classification system of facial clefts using a numerical system from 0-14 which designates the location, direction, and/or extent of the cleft relative to the ipsilateral orbit. 2D &3D craniofacial CT images are used to illustrate the radiographic findings of each cleft.

After reading this exhibit the observer should comprehend these key points: Understand facial embryology as it pertains to facial maldevelopment (facian clefting). Recognize the anatomy of facialclefts based on the numerical classification system described by Tessier. The observer should be able to accurately describe the relevant anatomy in the radiology report.

Bardo, D, Gibson, T, Didier, R, Pollock, J, Kutella, E, Kullnat, J, Andrews, T, Selden, N, Kuang, A, The Tessier Classification of Facial Clefts: Craniofacial CT Diagnosis with Embryology, Clinical, and Surgical Correlation.  Radiological Society of North America 2010 Scientific Assembly and Annual Meeting, November 28 - December 3, 2010 ,Chicago IL. http://archive.rsna.org/2010/9004335.html