Resolution of pulmonary hypertension with low-molecular-weight heparin, steroid, and prostacyclin analogue therapy: could it be early-phase pulmonary veno-occlusive disease?

Pulmonary veno-occlusive disease (PVOD) is a rare cause of pulmonary hypertension. The authors present a case of neuroblastoma with progressive dyspnea, hypoxemia, and pulmonary hypertension. A computed tomography scan of the chest revealed septal thickening and diffuse micronodules. The patient was diagnosed as PVOD and was successfully treated with low-molecular-weight heparin (LMWH) and corticosteroid.