Surgery Neoplasia 902b756b Commonest posterior mediastinal tumour is: A Lung cyst B Neurofibroma C Dermoid D Thyroid High-Yield Explanation Ans: b (Neurofibroma)Ref: Bailey & Love, 24th ed, p. 862, Fig (56.20) & 23rd ed p. 791, Schwartz, 7th ed p. 772