Precapillary pulmonary hypeension is caused by all except: (A) Mitral stenosis, (B) Pulmonary vasculitis, (C) Primary pulmonary hypeension, (D) Thromboembolism
Answer is A. Category 2. Pulmonary venous hypeensionKey feature: elevation in PAP with elevation in PCWPIncludes:Left-sided atrial or ventricular hea diseaseLeft-sided valvular hea diseasePulmonary venous obstructionPulmonary Veno-occlusive disease (PVOD)Ref: Harrison's 18/e p2077, 2079