May Be Caused by

Acute leukemia

Acute lymphadenitis

Anthrax

Aorta trauma

Aortic dissection

Bacterial infection

Bleeding tendency

Catheter malposition

Coccidioidomycosis

Dental infection

Drug abuse

Esophageal perforation

Great vessel trauma

Heart failure

Heart trauma

Histoplasmosis

Idiopathic

Infectious mononucleosis

Lung infection

Lymphoma

Opportunistic infection

Osteomyelitis

Pancreatitis

Parotitis

Pharyngitis

Plague

Pleural infection

Postoperative state

Postthoracotomy lymphocele

Ruptured aortic aneurysm

Ruptured lymphangioma

Sarcoidosis

Spontaneous

Sternal fracture

Subphrenic abscess

Superior vena cava syndrome

Thoracic duct laceration

Thoracic duct obstruction

Tonsillitis

Traumatic

Tuberculosis

Tularemia

Vertebral fracture