<prompt> Which tumor among the following is not found in Ant. Mediastinum -Retrosternal goitreThymomaTeratomous massNeurogenic tumor  <response>: Location of the common Mediastinal Masses Anterior Mediastinum Middle Mediastinum Posterior Mediastinum Thymoma MC in anterior mediastinum Lymphoma Germ cell tumors Thyroid and parathyroid masses Bronchogenic cyst Aneurysm Cyst MC in middle mediastinum PericardialMC Bronchogenic Enterogenous Neuroenteric Vascular massesaneurysm LN Enlargement and lymphoma Mesenchymal tumors Pheochromocytoma Neurogenic tumors MC overall Meningoceles Mesenchymal tumors Pheochromocytoma Lymphoma Bochdalek hernia Bronchogenic cyst Enterogenous cyst Ref: Sabiston 20th edition Pgno : 1608 