PMC526771_01
Flow-volume curve displays suggestive fixed airway obstruction
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F1
Forced vital capacity (FVC) was 122 % of predicted, forced expiratory volume in one second (FEV1) was 31 % of predicted and FEV1/FVC was 21 % (Figure 1).
a) Chest CT scan displays a polypoid mass occupying 50 % of the lumen. b) Control CT scan displays resolution of the tumor
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F2
The CT scan illustrated a solid, polipoid intratracheal mass originating from the right side of the trachea at 4 centimeter proximal of the carina (Figure 2a). CT scan of the neck revealed resolution of the tumor (Figure 2b).
Bronchoscopic examination reveals polypoid mass originating from trachea with a 50 % obstruction of the lumen.
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F3
The lesion was occupying approximately 50 % of the lumen (Figure 3).