PMC6704354_01
Chest X-ray and computed tomography (CT) prior to pembrolizumab treatment. (a) Radiograph showing a nodule in the middle of the right lung, mediastinal lymphadenopathy, and tracheobronchial stenosis. Chest CT image shows enlarged mediastinal lymph nodes at (b) trachea level and (c) carina level.. Abbreviation: CT, Computed Tomography.
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Computed tomography (CT) revealed a solitary 2.0-cm pulmonary mass in the right lower lobe and lymphadenopathy in the mediastinum (Fig. 1).
Chest X-ray and computed tomography (CT) after pembrolizumab administration. (a) Radiograph showing right pleural effusion, mediastinal lymphadenopathy, and tracheobronchial stenosis. Chest CT image shows enlarged mediastinal lymph nodes and a soft tissue mass in the trachea and right main bronchus at (b) trachea level and (c) carina level.. Abbreviation: CT, Computed Tomography.
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The chest CT revealed a soft tissue mass in the lower trachea to the right main bronchus. (Fig. 2).
Endoscopic view of lower part of the trachea. (a). Trachea is almost occluded by a whitish soft tissue mass obstructing the left main bronchus. (b) Close-range photograph.
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Bronchoscopy confirmed a soft tissue mass obstructing the lower trachea to such an extent that it impossible to explore the right main bronchus (Fig. 3).
Chest X-ray and computed tomography (CT) after stent placement and two cycles of pembrolizumab. (a) Radiograph showing the tracheal stent, decreased mediastinal lymphadenopathy, and right pleural effusion. (b) Chest CT image showing the endobronchial stent and shrunken mediastinal lymph nodes and soft tissue in the trachea and right main bronchus at (b) trachea level and (c) carina level.. Abbreviation: CT, Computed Tomography.
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Chest X-ray and CT results after stent placement and two cycles of pembrolizumab were improved (Fig. 4), and she was discharged.