A case of primary pulmonary hypertension with pulmonary tumor.

A 64-year-old female with a 9-year history of primary pulmonary hypertension developed a solid pulmonary tumor. Partial lung resection was planned for diagnosis. Although prostacyclin was increased to 8 ng/kg/min, she did not tolerate the decubitus position and one-lung ventilation, and her pulmonary arterial pressure rose to 110/45 mmHg. While she underwent partial resection under two-lung ventilation in the decubitus position, bleeding occurred from the suture line closed by a linear stapler and was controlled by additional sutures. She was discharged home without postoperative complications on postoperative day 15. The pathological examination revealed a bronchioloalveolar carcinoma. If pulmonary resection becomes necessary in a similar patient, we will plan a partial resection with the patient in a supine position to prevent elevation of pulmonary arterial pressure.