<unk>  (also termed facial hemihypertrophy, facial hemihyperplasia, or Friedreich's disease) abbreviated as (HFH) is rare congenital disease characterized by unilateral enlargement of the head and teeth. It is classified as true HFH (THFH) with unilateral enlargement of the viscerocranium, and partial HFH (PHFH) in which not all structures are enlarged.<unk>  can cause a wide spectrum of defects or may involve only muscle or bone. it is usually treated surgically. It is believed to be a minor form of hemihypertrophy.
Hemifacial hypertrophy
Spotted lunulae
Crenated tongue
Macrodontia 
Hamartia 
Tripe palms
Black hairy tongue
Clitoromegaly