空肠扩张时可见() ["键盘征","鱼刺征","平行管征","结肠袋与半月襞","内径>2cm"]
成人外周血中白细胞总数的参考范围是() ["(4~10)×109/L","(4~8)×109/L","(5~10)×109/L","(8~10)×109/L","(8~12)×109/L"]
关于非骨化性纤维瘤的描述错误的是() ["肿瘤由坚韧的纤维结缔组织构成","好发于青少年的长骨","病变的长轴与长骨垂直","可多骨发生","少数病例可以自愈"]
骨肿瘤的好发部位错误的是() ["骨巨细胞瘤好发于长骨的干骺端","骨肉瘤好发于长骨的干骺端","骨髓瘤好发于扁骨","骨瘤好发于颅骨","非骨化性纤维瘤好发于骨皮质"]
能引起低血糖的胰腺病变是() ["胰腺假性囊肿","慢性胰腺炎","功能性胰岛细胞瘤","胰头癌","急性胰腺炎"]
简述原发性皮肤T淋巴细胞瘤的临床类型及其特点。