case_images: PMC7322609_01
case_images: (a) Computed tomography image of the chest depicting a large right upper paratracheal mass. (b) Computed tomography image of the chest depicting pleural and pericardial.
case_images: CRIPU2020-6396915.001.jpg
case_images: PMC7322609_01_CRIPU2020-6396915.001.jpg
case_images: fig1
case_images: A subsequent computed tomography study of the chest revealed extensive right lung metastatic disease and a large lobulated right upper paratracheal mass (Figures 1(a) and 1(b)).
case_images: (a) Endobronchial smooth polypoid lesion arising from the right upper lobe apical segment. (b) Endobronchial ultrasound image of the right paratracheal heterogeneous mass.
case_images: CRIPU2020-6396915.002.jpg
case_images: PMC7322609_01_CRIPU2020-6396915.002.jpg
case_images: fig2
case_images: Endobronchial ultrasound revealed a large heterogeneous paratracheal mass and a polypoid smooth endobronchial lesion in the apical segment of the right upper lobe (B1; Figures 2(a) and 2(b)).
case_images: (a) High-magnification image showing a biphasic neoplasm composed of lymphocytes and epithelial cells. (b) Immunostaining for high molecular weight cytokeratin (CK5/6) highlighting the epithelial component. The lymphocytes are negative.
case_images: CRIPU2020-6396915.003.jpg
case_images: PMC7322609_01_CRIPU2020-6396915.003.jpg
case_images: fig3
case_images: Pathology from the endobronchial lesion was consistent with metastatic thymoma (Figures 3(a) and 3(b)).