How to diagnose Ehlers-Danlos syndrome, vascular type ?
How is Ehlers-Danlos syndrome, vascular type diagnosed? A diagnosis of Ehlers-Danlos syndrome (EDS), vascular type is typically based on the presence of characteristic signs and symptoms. Genetic testing for a change (mutation) in the COL3A1 gene can then be ordered to confirm the diagnosis. Collagen typing performed on a skin biopsy may be recommended if genetic testing is inconclusive. Collagen is a tough, fiber-like protein that makes up about a third of body protein. It is part of the structure of tendons, bones, and connective tissues. People with EDS, vascular type have abnormalities in type III collagen.