原位癌区别于早期浸润癌的病理判断标准是() ["上皮层轮廓完整","上皮层表面有角化","上皮棘层细胞完好","上皮基底细胞完好","上皮基底膜完好"]
胃癌的患者,虽没有幽门梗阻,但病理证实左锁骨上淋巴结有转移,其治疗原则是() ["姑息性胃空肠吻合术","根治性胃全切除术加左锁骨上淋巴结清除术","无手术指征,可予适当化疗及支持疗法","根治性胃大部切除术加局部放疗","根治性胃大部切除术加术后化疗"]
伴有糖尿病肾病的高血压患者首选的降压药物是() ["利尿药","钙拮抗剂","血管紧张素转化酶抑制剂","神经节阻断药","β受体阻断剂"]
门静脉高压症手术的主要目的是() ["治疗腹水","改善肝功能","预防和控制食管、胃底曲张静脉出血","治疗肝性脑病","去除门静脉高压症的病因"]
男性,70岁。大便秘结半年,后逐渐大便变细,近4个月来反复解脓血样便,3~4次/天。近5天以来未排便,伴腹胀、呕吐,不能进食。查体:全腹胀,对称,肠鸣音不亢进,未扪及肿块,肛门指检未扪及肿块。结肠镜检:距肛门11cm可见环形狭窄,呈菜花样外观,肠镜不能通过。目前可诊断为() ["直肠绒毛状腺瘤","直肠癌","乙状结肠癌","溃疡性结肠炎","直肠炎伴瘢痕狭窄"]
淋巴瘤分期按()分成A和B症状。