Mask is a 1985 drama film about a boy with a massive facial skull deformity.
The movie is based on the real-life story of Rocky Dennis, a teenager disfigured by elephantiasis, which causes his face to resemble a bizarre mask.
Elephantiasis is a condition characterized by gross enlargement of an area of the body, especially the limbs. Other areas commonly affected include the external gènitals.
This condition is caused by obstruction of the lymphatic system, which results in the accumulation of a fluid called lymph in the affected areas.
Mask starred Cher, Eric Stoltz and Sam Elliott. See full cast and crew at IMDb.