Gronblad Strandberg syndrome with vertibrobasilar dolichoectasia.

The constellation of pseudoxanthoma elasticum, ocular involvement and vascular disturbances is termed Gronblad Strandberg syndrome. Pseudoxanthoma elasticum is a genetic disorder characterized by progressive calcification and fragmentation of elastic fibres in the skin, retina and the cardiovascular system. Typically the cutaneous lesions begin in childhood, but because of their asymptomatic nature they are not noted until adolescence.