34. 一位65歲的COPD男性,主訴咳嗽、血痰及體重減輕,胸部X光顯示右上肺有一2.5x2.9cm之腫瘤合併右上肺塌陷,電腦斷層除右上肺病灶外,right lower paratracheal (4R),subcarina (7)以及aortopulmonary (5) 之淋巴結腫大,支氣管鏡檢查RB3 orifice有一polypoid tumor,切片之病理診斷為Squamous cell carcinoma,腹部超音波及骨骼掃描正常,其TNM staging為?
(A) T2N2M0, stage IIIA
(B) T2N3M0, stage IIIB
(C) T3N2M0, stage IIIA
(D) T3N3M0, stage IIIB