system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Commonest posterior mediastinal tumour is:
assistant
The correct answer is  Ans: b (Neurofibroma)Ref: Bailey & Love, 24th ed, p. 862, Fig (56.20) & 23rd ed p. 791, Schwartz, 7th ed p. 772