case_images: PMC8278991_01
case_images: The chest radiograph showed a homogeneous mass lesion in the
  left upper zone, with multiple pleural-based mass lesions.
case_images: AJTCCM-25-1-229-fig1.jpg
case_images: PMC8278991_01_AJTCCM-25-1-229-fig1.jpg
case_images: F1
case_images: A chest radiograph revealed a homogeneous opacity in the left upper zone, with multiple pleural-based mass lesions (Fig. 1).
case_images: The computed tomography scan of the chest showed a large
  lobulated soft-tissue anterior mediastinal mass, with multiple nodular
  pleural-based mass lesions on the left side.
case_images: AJTCCM-25-1-229-fig2.jpg
case_images: PMC8278991_01_AJTCCM-25-1-229-fig2.jpg
case_images: F2
case_images: The chest radiograph, taken 4 years prior to the current
  presentation, revealed a mass lesion in the left mid to upper zone. A clear
  hilum overlay sign was present and the descending aorta was clearly
  visible, suggesting an anterior mediastinal mass.
case_images: AJTCCM-25-1-229-fig3.jpg
case_images: PMC8278991_01_AJTCCM-25-1-229-fig3.jpg
case_images: F3
case_images: The patient's previous images captured on the local healthcare system's radiology archive were reviewed and it was noted that a chest radiograph performed 4 years earlier also showed the mass lesion in the anterior mediastinum (Fig. 3).