The exact cause of<unk>  has not yet been definitively determined. Of those patients who have been diagnosed with<unk> , 15% have a close relative who also has the syndrome. One possible explanation is that the syndrome results from a combination of an environmental agent and a hereditary predisposition. Mycobacterium and Propionibacteria species have both been suggested as the environmental agent, though the evidence for this is inconclusive.
Heerfordt syndrome
Claude's syndrome
Bruck syndrome
Helsmoortel-Van der Aa syndrome
Aagenaes syndrome
Van Den Bosch syndrome
Epstein syndrome
Van der Woude syndrome