A 41-year-old man was admitted with hemoptysis and a 10-year history of progressive exertional decline. He had a patent ductus arteriosus diagnosed in adult life that was unrepaired because of ...

A 2-year-old twin boy was referred to a cardiology clinic for long-standing cyanosis. He had been born to a healthy 36-year-old mother. The diamnionic, dichorionic twin pregnancy had been complicated ...

Bluish skin discoloration (cyanosis) may affect your hands, feet, or entire body. Possible causes include heart, lung, and circulatory conditions, some of which are life threatening. Many conditions ...