PMC4621161_01
(A) Chest x-ray shows opacity with a lobulated contour in the upper mid zone (white arrow); (B, C) contrast enhanced axial CT scan of the thorax demonstrating a pleura-based lobulated mass (white arrow) in the anterior segment of the right upper lung lobe with central cavitation (black dashed arrow).
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The mass measured 4x3x3 cm, displayed central cavitation, and extended towards the right hilum along with the right upper lobe anterior segmental bronchus (Figure 1).
PMC4621161_02
(A) Chest x-ray shows lobulated high density opacity in the paracardiac location of the mid zone of the right lung, (B) contrast enhanced coronal reformatted and (C, D) contrast enhanced axial CT scan of the thorax shows dense coarse inner calcifications leading to the right lower lobe from right hilum.
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The mass displaced the right inferior pulmonary vein backward without invasion into broncho-vascular structures (Figure 2).
PMC4621161_03
(A, B) Contrast enhanced axial CT scan of the thorax, (C) sagital reformatted and (D) coronal reformatted CT scan of the thorax shows pleura-based consolidated lesion with spiculated contours in the superior segment of the right lower lung lobe.
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Subsegmental atelectasis was present around the lesion (Figure 3).