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((a) = axial section and ((b) = coronal reconstruction): Linear thick extraskeletal, parietal, tracheal, and left bronchial strain calcium formation, circumferential with intraluminal extension, attached to the anterior surface of the T4 vertebral body by a thick extension ((a): red arrows). CT in pulmonary window: atelectasis of the left pulmonary lobes ((b): red circle).
