What does double lung cord shadow mean?

Double lung streaking refers to high density lesions in the form of double lung streaking on chest X-ray or chest CT. Double lung streaking often represents old lung lesions, especially after recovery of pulmonary infectious diseases. For double lung streaking, most of them do not cause clinical symptoms and do not require special treatment. However, we should also be vigilant, in rare cases, the strip shadow of both lungs, there may be cancer, this situation is also called lung scar cancer. Therefore, patients with double lung strip shadow, sometimes also need to pay attention to review chest CT.