Causes of Superior Vena Cava (SVC) Syndrome Malignant Causes (2/3 of cases) - 95% - Lung Cancer - NSCLC (most common) - SCLC - Lymphoblastic Lymphoma - DLBCL - 5% - Primary Mediastinal Germ cell neoplasms - Metastatic Cancer Non-Malignant Causes (1/3 of cases) - Central venous catheter induced thrombosis - Infectious causes - Histoplasmosis - Nocardiosis - Retrostemal goiters - Post-radiation local vascular fibrosis Dr. Thomas George @Thomas28George #SVC #SuperiorVenaCava #Syndrome #Causes #Differential #diagnosis #vascular