Pulmonary venoocclusive disease: CT findings before and after single-lung transplantation.

Pulmonary venoocclusive disease is a rare disorder in which gradual obliteration of the pulmonary veins leads to pulmonary hypertension. The disease has multiple causes, including viral infections, inhaled toxins, deposition of immune complexes in the lung, genetic predispositions, and use of contraceptive or cytotoxic chemotherapeutic agents [1]. In addition, radiation injury has been proposed as a possible cause [2]. The disease is generally fatal within a few years. We describe a patient who had single-lung transplantation for end-stage pulmonary venoocclusive disease. High-resolution CT (HRCT) scans were obtained before and after surgery.