Pulmonary hypertension secondary to pulmonary venoocclusive disease (PVOD) is increasingly recognized (Wagenvoort, Chest 69: 82- 86, ; Scully et al., N Engl J Med 308: 823-834, ). The clinical presentation is usually progressive pulmonary hypertension. It should be kept in mind when there is pulmonary arterial hypertension, pulmonary edema, and a normal pulmonary artery wedge pressure. Importance of diagnosing this condition is to protect patient from fatal pulmonary edema when using prostacyclins that are effective for treatment of primary pulmonary hypertension. Herein, we present multidetector computed tomography findings of PVOD in a pregnant woman that presented with pulmonary hypertension. catheterization . Pregnancy is among the causes of this entity with undefined pathogenesis. Although it is hard to differentiate from other etiologies of pulmonary hypertension, it is increasingly diagnosed on computed tomography (CT). In this report, we present multidetector computed tomography (MDCT) findings of a PVOD in a pregnant woman.