Pneumonia in the child may develop fluid collection in the chest cavity (effusion) which may get converted to pus (empyema). Traditionally it required formal thoracotomy( opening of the chest) and removing of the pus and help the lung to expand . This requires big incision and cutting of the muscles of the chest wall. Child will have big scar and may develop chest wall deformity.
Thoracoscopic surgeries can do the removal of empyema through key hole incision as as a result cause less pain, tiny scar and no chest wall deformity.