Which of the following statements best describes humor in China a. It is more or less the same in all parts of the country. b. It is drastically different in every part of the country. c. It is distinguished from Hong Kong. d. It is more a verbal act than a physical act in the north.

下列关于脾淋巴瘤的描述，错误的是

A．是常见的恶性脾脏肿瘤

B．病理上分为弥漫肿大型、粟粒型、多发结节型和孤立大肿块型四型

C．CT上有特征性改变

D．增强扫描有助于发现病灶

E．合并腹膜后淋巴结肿大有助于诊断