👉 Pneumocele, also known as pleural effusion, is a condition in which fluid collects within the pleura, or lung sacs. It occurs when there is an obstruction to the flow of air and fluids between the lungs and the chest cavity. Pneumonocele can be caused by various factors such as injury, infection, or chronic obstructive pulmonary disease (COPD). In severe cases, it may lead to pleural effusion, a condition characterized by fluid buildup
