This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pathology
Which tumor is not seen int the anterior mediastinum - 
Select and explain. 
A. Teratoma, B. Thymic tumours, C. Thytroid tumours, D. Neurofibroma
D: Neurofibroma
Answer: D: Neurofibroma 
Explanation: Ref:Pathologic Basis of Disease (Robbins and cotran) 7th edition ,page no.765 Mediastinal tumors and other mass Superior Mediastinum Lymphoma Thymoma Thyroid lesions Metasttic carcinoma Parathyroid tumors Anterior Mediastinum Thymoma Teratoma Lymphoma Thyroid lesions Parathyroid tumours Posterior Mediastinum Neurogenic tumours Gastroenteric Hernia Middle Mediastinum Bronchogenic cyst Pericardial cyst Lymphoma