Abstract
Lipoid proteinosis is a rare hereditary metabolic disorder transmitted as an autosomal recessive trait. It is
characterized by the deposition of an amorphous hyaline-like material (glycoprotein) in the mucous
membranes, skin and various internal organs. Cryosurgery (N2O) was applied to remove and reshape the
lip lesions in a case of this rare syndrome.
The patient was a 24-year-old female. Cryosurgery (−63ºC N2O for one minute) was performed to reshape
some areas of the upper lip. The lips were softer and had better esthetics after treatment. The use
of cryosurgery offers advantages over surgery in reshaping of the lip lesions in this syndrome, since
suturing is not feasible in rigid mucosa of these patients