The morbidity and mortality rates associated with<unk>  have declined as treatments have improved. Malignant, bilateral, and chronic<unk> es have an inferior prognosis to other types. Currently, the mortality and morbidity rates are about 10% if treated surgically. If cases are post-operative and treated conservatively, mortality rates approach 50%. Complications Complications of<unk>  include malnutrition, immunosuppression, dehydration, and respiratory distress. The severity of the complications depends on how quickly the<unk>  accumulated, its size, and its chronicity.
Chylothorax
Hemothorax
Urinothorax
Hydropneumothorax
Hemopneumothorax
Hydrothorax
Pneumothorax
Pulmonary hematoma