Figures Figure?1 A-F, The left and right columns show images obtained prior to and following endobronchial ultrasound-guided transbronchial needle aspiration. A, B, Posteroanterior view on chest radiograph showing right paratracheal opacity (A) and right paratracheal air-fluid level (B). C,?D, CT scan of chest at the level of arch of aorta with right paratracheal mass with internal area of hypoattenuation (C) and air fluid level (D). E, F, Coronal reconstruction images on CT scan showing right paratracheal mass and narrowing of the superior vena cava where it joins the right atrium (E) and right paratracheal air column with normal patency of the superior vena cava (F). Figure?2 From left to right: endobronchial ultrasound-guided transbronchial needle aspiration of the anechoic structure at 4R station; bronchoscopic view of puncture site at 4R station; and aspirated clear fluid. A 44-year-old man presented with progressively increasing nonproductive cough associated with a sensation of heaviness over the upper chest for 7?months. He had no dyspnea, fever, hemoptysis, chest pain, headache, or weight loss. His clinical examination was unremarkable. Complete blood hemogram, coagulation profile, blood sugar, and results of renal and liver function tests were normal; ECG and spirometry results were also normal. A posteroanterior view on chest radiograph showed a right paratracheal stripe.
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