PMC5943882_01
(A) Partially fibrotic lungs with a disseminated nodular pattern observed in the computer tomography pulmonary angiography. (B) Enlarged and calcified right hilar lymph nodes encompassed proximal upper right pulmonary artery, causing abrupt stenosis. (C) Enlarged and calcified left hilar lymph nodes encompassed proximal lower left pulmonary artery, causing abrupt stenosis.
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F1
These lymphnodes encompassed both of the central pulmonary arteries, causing abrupt stenosis (Fig. 1).
(A) The preoperation angiograms showed severe stenosis of the proximal upper right and lower left pulmonary artery. (B) The postoperation angiograms showed a significantly increased pulmonary artery caliber and normal distal flow.
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F2
The final angiograms showed a significantly increased pulmonary artery caliber of the lesion and normal distal flow (Fig. 2).