Differential diagnosis of mediastinal mass

Anterior compartment	Middle compartment	Posterior compartment
Thymus Thymoma Thymic cyst Thymic hyperplasia Thymic carcinoma	Bronchogenic cyst	Neurogenic tumors Neurofibroma Neurilemmoma Neurosarcoma Ganglioneuroma Ganglioneuroblastoma Neuroblastoma Chemodectoma Pheochromocytoma
Lymphoma	Pericardial cyst	Meningoceles
Germ cell tumor Teratoma/dermoid cyst Seminoma Non-seminoma - Yolk sac tumor - Embryonal carcinoma - Choriocarcinoma	Lymphadenopathy Lymphoma Sarcoid Metastatic lung cancer	Thoracic spine lesions (eg, Pott's disease)
Intrathoracic thyroid Substernal goiter Ectopic thyroid tissue	Enteric cyst
Parathyroid adenoma	Esophageal tumors
Hemangioma	Vascular masses and enlargement
Lipoma
Liposarcoma
Fibroma
Fibrosarcoma
Foramen of Morgagni hernia

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