<prompt> According to Hoyme et al classification of hemihyperplasia, Hemifacial hyperplasia involves:Half the bodySingle limbOne side of faceNone  <response>: Hoyme et al 1998 provided an anatomic classification of hemihyperplasia: Complex hemihyperplasia is the involvement of half of the body at least one arm and one leg; affected parts may be contralateral or ipsilateral.Simple hemihyperplasia is the involvement of a single limb.Hemifacial hyperplasia is the involvement of one side of the face.Ref: Shafers textbook of oral pathology 7th edition page 14 