Figure 10: (10a) A GRE T2*-weighted sagittal image reveals a complex tear of the posterior horn of the medial meniscus, having horizontal (arrows) and longitudinal (arrowhead) components. Complex tears like this are likely to be unstable.igure 6: (6a) A radial tear of the body of the lateral meniscus also appears vertical on sagittal MR images (arrow), though in the case of radial tears, the lesion is oriented perpendicular to the c-shaped fibers of the meniscus.
In brief: See a doctor, urgent. A collapsed lung (pneumothorax) is due to an air leak from the inside of the lung through the covering of the lung, out into the space between the lung and the ribs. The site of the leak has some damage, which will heal itself later.
Sometimes a broken rib punctures an artery and causes internal bleeding around the lung, which can cause shortness of breath. Rarely, a broken rib can cause a âpunctured lung,â or pneumothorax, in which the lung collapses and air enters the space around the lung. This can cause severe pain and shortness of breath. Occasionally, fluid or air collects outside the lung and squeezes the lung. This also can cause shortness of breath.