“…Pulmonary system-related chest pain is also not highly prevalent, accounting for 1.82–12.78% [ 1 , 9 , 12 , 14 , 15 , 16 , 17 , 31 ], with common causes including pneumothorax, asthma, pneumonia, and the less common pneumomediastinum [ 32 , 33 , 34 , 35 , 36 , 37 , 38 , 39 ]. Some of these diseases can be potentially life-threatening, such as tension pneumothorax.…”