Note that: Primarily involves the upper lobes (especially the right). The draining bronchus may show irregular thickening or even frank stenosis.
This X-ray shows :Single smooth, well-defined pulmonary nodule in the left upper lobe. In the absence of a central nidus of calcification, this appearance is indistinguishable from that of a malignancy.
(A) Frontal and (B) lateral views of the chest show a large left lung soft-tissue mass (arrows) containing dense central calcification.
