Pulmonary artery sarcoma successfully treated by right pneumonectomy after definitive diagnosis

Figure 1 Axial enhanced computed tomography. At the level of the bronchus intermedius, showing a filling defect that occupies the entire lumina of the right and interlobar pulmonary arteries.

Figure 2 Pulmonary angiography. Showing the flow cutoff of the right main pulmonary artery at the base of the truncus arteriosus.

Figure 3 Lung perfusion scintigraphy. Just prior to the operation (right side) had worsened relative to that of a previous examination (left side).

Figure 4 Hematoxylin and eosin microscopy. A, B: The tumor occupies the lumen of the pulmonary artery (A: loupe image, B: × 20 magnification); C: Tumor cells consisting of atypical spindle cells (× 200 magnification); D: Tumor cells accompanying scattered mitotic figures (× 400 magnification).

Figure 5 Axial enhanced computed tomography. Eighteen months after surgery, no recurrence is apparent.