问题 问答题 简答题

试述上颌窦恶性肿瘤的诊断依据。

答案

参考答案:

上颌窦恶性肿瘤的诊断依据:

(1)上颌窦癌的临床表现:如脓血鼻涕、鼻塞和嗅觉减退、面颊部疼痛、面颊部隆起、上列磨牙疼痛或松动、眼球移位及眼肌麻痹等。40岁以上鼻腔症状及体征为单侧进行性,应怀疑上颌窦癌。

(2)前鼻镜及鼻内镜检查:鼻腔内可见菜花状、表面溃疡或坏死、易出血及基底广泛的新生物;鼻腔外侧壁内移,中鼻道或嗅裂中有血迹、息肉或新生物。

(3)鼻窦CT或MRI检查可明确肿瘤的大小和侵犯范围,可见上颌窦内密度增高,骨质破坏,眶内受侵等。

(4)肿瘤组织活检:可确诊。

选择题
阅读理解

阅读理解。

                                                                                                                                  108 Wensan Road

                                                                                                                                  London, 85 A 100

                                                                                                                                  England

                                                                                                                                  March 1st, 2008 

Dear Kate,

    I am writing to you in English. I hope you can understand it.

    I love studying in London and I have many new friends. Most of them are my classmates. From Monday to

Friday, we have Chinese, math, physics and P.E. in the morning. I like Chinese and physics, because they're

interesting. I don't like math. It's too boring. At noon, I have to have lunch at school because my home is far

from my school. We usually have two classes in the afternoon, art and politics. We finish our classes at 3:30

p.m. After school, my friends and I always play soccer on the playground. And then we go home by bus.

    On weekends, we have no classes. We often go to the park and sometimes we go to the movies in the

evening. We see movies twice a month. I like some famous stars like Jackie Chan.

    Oh, I have no time to write more. Please write back soon.

    Best wishes, 

                                                                                                                                            Wang Gang

1. Where is the writer studying? [ ]

A.In America.

B.In China.

C.In England.

D.In Canada.

2. How many classes does Wang Gang have every weekday? [ ]

A.Six.

B.Four.

C.Two.

D.No classes.

3. The writer doesn't like _____ at all, because it's too boring. [ ]

A.Chinese

B.art

C.movie

D.math

4. How does the writer go home every day? [ ]

A.On foot.

B.By bike.

C.By bus.

D.By car.

5. The writer and his friends go to the movies _____. [ ]

A.once a week

B.once a month

C.twice a week

D.twice a month