Hello, my name is Yvonne Gopsill. My husband and I live in the Clearwater, Florida area. Our lifelong friend, who also lives in Clearwater, has been diagnosed with Constrictive Pericarditis. His cardiologist told us to urgently seek out if this was from a viral source or an autoimmune origin. (ANA is elevated) We need expert guidance urgently to find this out and how he gets tested. Our friend is very very ill. We have come to learn that this is very rare.