What is Romberg disease?
Parry–Romberg syndrome (also known as progressive hemifacial atrophy) is a rare neurocutaneous syndrome characterized by progressive shrinkage and degeneration of the tissues beneath the skin, usually on only one side of the face (hemifacial atrophy) but occasionally extending to other parts of the body. An autoimmune mechanism is suspected, and the syndrome may be a variant of localized scleroderma, but the precise etiology and pathogenesis of this acquired disorder remains unknown. It has been reported in the literature as a consequence of sympathectomy. The syndrome has a higher prevalence in females and typically appears between 515 years of age.
In addition to the connective tissue disease, the condition is often accompanied by significant neurological, ocular and oral signs and symptoms. The range and severity of associated symptoms and findings are highly variable.