<prompt> Pseudoahrosis of Tibia is seen associated withNF-1NF-2VHLSTURGE WEBER SYNDROME  <response>: Pseudoahrosis of the tibia is usually seen associated with NF-1,a false joint between knee and ankle. Sphenoid wing dysplasia is also seen in NF-1. Acoustic NeuromasSchwannomas are seen with NF-2. Multifocal haemangioblastomas are associated with VHL. Powine stain,leptomeningeal vascular malformations and Tram Track appearanceare seen with Sturge Weber syndrome. 