👉 Pneumopyothorax is a medical condition that occurs when the membranes covering the lungs are inflamed and thin. This can be caused by various factors, such as trauma to the chest or lung tissue during an injury or illness, smoking, certain medications, or even genetics. Symptoms of pneumopyothorax include difficulty breathing, coughing up thick mucus, and pain in the chest or back. Treatment may involve antibiotics, bronchodilators, and other forms of pain relief