[Fibromyalgia: an unrecognized Ehlers-Danlos syndrome hypermobile type?]. 
Some patients suffering from fibromyalgia present with clinical signs and alterations in the histopathology, immunohistochemistry and ultrastructure of the dermis similar to the Ehlers-Danlos syndrome, hypermobile type (EDSH).  Some types of fibromyalgia possibly represent an undiagnosed EDSH.