To review the description of the “pulmonary vein sign”.
To review the various etiologies of the “pulmonary vein sign”.
This sign was previously introduced by Saffar and Gupta as the “dark pulmonary vein sign” and described not only in PE (54%) but also in other pathologies (e.g.
consolidation and infiltrates).
Hassani and Saremi pointed out that an asymmetric enhancement/nonenhancement of a pulmonary vein can be the result of several factors and any pathologic condition increasing the pulmonary resistance can reduce the pulmonary venous return.
any pathologic condition of the pulmonary...
Imaging findings OR procedure details
The PVS more commonly is seen in cases of acute pulmonary embolism Fig. 2 and can also bee seen in cases of chronic thromboembolic pulmonary disease Fig. 3 Among the pulmonary causes of the PVS there are focal and diffuse diseases.
Focal etiologies of the sign are atelectasis Fig. 4 and pneumonia.
Lung cancer can also cause the sign when there is severe obstruction or occlusion of the pulmonary arteries Fig. 5 .
Lung fibrosis can also produce the sign Fig. 6 ,
in lung fibrosis the sign can be...
Although the “pulmonary vein sign” has been described in cases of PE using CTPA with high specificity,
it can also be seen in other conditions even on non-CTPA.
this sign should be considered abnormal and direct our attention to rule-out an ipsilateral lung disease.
"Pulmonary Vein Sign" for Pulmonary Embolism Diagnosis in Computed Tomography Angiography.
2017 Oct;195(6):769-774. 2.
A new perspective for pulmonary thromboembolism radiology: ‘Pulmonary vein sign’.
Clin Respir J.
2018 Nov;12(12):2653-2658. 3.
The dark pulmonary vein sign.
RANZCR Annual Scientific Meeting 2011,
October 6-9; Melbourne/AU. 4.