Primary Pulmonary Meningioma Simulating a Pulmonary Metastasis

Figure 1

Axial chest computed tomography scan at subcarinal level demonstrates a 4.5 mm ground-glass opacity nodule in left upper lobe of lung (arrow) and a 16 mm part-solid ground-glass nodule in left lower lobe of lung (arrowhead). They are proved to be a pulmonary meningioma in left upper lobe of lung and granulomatous inflammation in left lower lobe of lung in histologic diagnosis, respectively.