Craniofacial hyperostoses in Proteus syndrome -- a case report.

Objective: Description of a patient with a rare syndrome leading to the partial overgrowth of craniofacial bones.

Case Report: In a 17-year-old female patient with severe hyperostoses of the craniofacial bones asymmetric overgrowth of the right upper and left lower limbs, linear hyperpigmentation of the right arm and a history of regional lipomatosis were found. These manifestations were suggestive of Proteus syndrome. The management of the craniofacial involvement is described and a literature overview presented.

Conclusion: Proteus syndrome is a rare overgrowth syndrome probably related to a somatic mutation that involves craniofacial structures in about 30% of patients. Early diagnosis is required for adequate interdisciplinary treatment.