Fig. 3

Intraoperative images of the lesions and pathological findings. (A) The white pleural changes observed in the right lower lobe. (B) Upon incision, the nodule revealed the discharge of brown fluid. (C, D) A segment of the white pleural change exhibited marked pleural thickening and cystic features beneath it. (E) The cyst contents comprised red blood cells, fibrin, and hemosiderin-laden macrophages (magnification × 100)