Pulmonary veno-occlusive disease (PVOD) is a rare type of pulmonary hypertension (PH) (a subgroup of arterial PH) characterized by specific damage to the pulmonary capillaries and venous system. 1,2 The pathology is typically characterized by diffuse vasculopathy of venules as well as dilatation and angioproliferation of alveolar capillaries. This leads to occlusion of small pulmonary ....