Hemifacial hyperplasia (hemifacial hypertrophy)

Hemifacial hyperplasia (hemifacial hypertrophy) 

Definition 

     Abnormal enlargement of one side of the face.

Etiology 

     Multiple     etiologic  factors  have  been    suggested    including vascular    or  lymphatic

        abnormalities, endocrine dysfunction, and chromosome abnormalities (heredity).


Clinically 



     Asymmetry often is noted at birth (congenital) and continues until         the patient's overall  growth ceases.

     The changes involve all the tissues on the affected side.

     Unilateral macroglossia.

     Enlargement of  oral soft tissues and jaws.

     The crowns and roots of the teeth on the affected side are                   larger.