“…7,16 One-third of all PAAs reported may worsen due to rupture and die of massive hemoptysis, asphyxiation, exsanguination, and sudden death. 7,17 Treatment is surgical management in the presence of a shunt, or else conservative medical management. 18,19 Medical management includes calcium channel blockers, diuretics, anticoagulants, endothelin receptor antagonists, phosphodiesterase type 5 inhibitors, and prostacyclin derivatives.…”