👉 Gastropleuritis is a condition in which the lining of the lungs, known as the pleura, becomes inflamed and causes pain. It's usually caused by an infection or inflammation in the lining of the lung called the pericardium (middle ear). This can happen due to infections like pneumonia, allergic reactions, or other conditions that affect the immune system. Symptoms include chest pain or discomfort, coughing up blood, fever, and difficulty breathing. Treatment typically involves antibiotics, rest