首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A couple weeks before he was scheduled to have his teeth cleaned, Gerald Zember. felt a slight pain in the back of his mouth. Th
A couple weeks before he was scheduled to have his teeth cleaned, Gerald Zember. felt a slight pain in the back of his mouth. Th
admin
2010-01-15
45
问题
A couple weeks before he was scheduled to have his teeth cleaned, Gerald Zember. felt a slight pain in the back of his mouth. The retired lawyer figured he had burnt his tongue sipping hot soup or developed an ulcer from one too many spicy meals. And at first glance, Zember’s Ft. Lauder- dale, Fla., dentist, William Balanoff, didn’t notice anything unusual during a routine examination-until he pulled out a new oral-cancer screening tool called ViziLite.
After Zember rinsed with a raspberry-flavored acetic solution, Balanoff inserted a ViziLite light stick into his patient’s mouth. Suddenly, a tiny white lesion became visible on the side of Zember’s tongue. "It was tiny, but I couldn’t explain it away," says Balanoff, since Zember had no history of canker sores that could have left such a mark. Zember, 78, did have a history of smoking, though, which put him at higher risk for oral cancer. So Balanoff referred him to an oral surgeon to have the lesion checked out. A biopsy revealed the cells were cancerous. "It was so tiny, I might not have noticed it until a year or a year and a half later [once it had grown]," says Balanoff. "By then, it would have been a stage-three cancer, and his chances wouldn’t have been that good."
About 30,000 Americans will be diagnosed with oral or pharyngeal cancer this year, and more than 8,000 people will die from it. The death rate--about 50 percent over five years--hasn’t changed much in the past few decades, in part because the cancer often isn’t detected until it’s visible to the naked eye. "Probably about two thirds of the cases at the time of diagnosis and treatment are already at an advanced stage," says Sol Silverman, a professor of oral medicine at the University of California, San Francisco, and an oral-cancer spokesman for the American Dental Association. "So what can we do today? Early detection."
Over the past few years, the American Dental Association has made detecting oral cancer earlier a priority, launching an awareness campaign in 1999. But it’s taken a little while for the new screening tools to catch on. ViziLite, manufactured by Phoenix--based Zila Pharmaceuticals, was approved by the Food and Drug Administration in November 2001, but not widely marketed until this year. Another device, OralCDx’s oral-brush biopsy, which uses a specialized brush to collect several test ceils from the tongue’s surface, has been available since 2000. But it was only this year that Delta Dental Plan of Michigan and its affiliated plans in Ohio and Indiana became one of the nation’s first dental benefits providers to include the diagnostic tool, distributed by Sullivan-Schein Dental, as part of its standard benefits ( DaimlerChrysler was the first employer group to incorporate the benefit for it’s 400,000 union workers).
Soon there may be another option, too. Zila’s OraTest, a patented five-minute mouth rinse that uses a special dye, has already been approved for use in more than a dozen other countries, but still awaits approval from the FDA.
Which of the following is true according to the passage?
选项
A、Doctors always use raspberry-flavored solution
B、Stage-three cancer could be a killer
C、Seeing is believing
D、Zember’s cancer came from peppery food
答案
B
解析
推理题。文章第二段提到“By then,it would have been a stage-three cancer,and his chances wouldn’t have been that good.”(到那时,病情已经发展成第三期癌症,Zember存活的几率就没有那么乐观了。),可见,第三期癌症是致命的。所以正确答案是B。
转载请注明原文地址:https://kaotiyun.com/show/3Z6K777K
0
专业英语四级
相关试题推荐
(1)TheParis-basedInternationalEnergyAgency(IEA),initsannualforecast,saidanumberoffactors,includingthesoaringcos
(1)Sometimesthebiggestchangesinsocietyarethehardesttospotpreciselybecausetheyarehidinginplainsight.Itcouldw
(1)There’sabriefsceneinthebackhalfofPixar’sUpinwhich8-year-oldRussellrecallshow,yearsbefore,hisestrangedfa
(1)Wehaveallbeeninstructedtowashourhandsbeforeeatingtoavoidingesting"germs."Microorganisms(bacteria,protozoa,an
A、Itwasbecausethefirsttimewasn’tasuccess.B、Thissecondtimewasforherunbornbaby.C、Shewantedtosetagoodexample
(1)AcoupleofyearsagoagroupofmanagementscholarsfromYaleandtheUniversityofPittsburghtriedtodiscoverifthere
A、Plants.B、Minerals.C、Animals.D、Metalsubstances.A细节题。录音中提到:Thereareseveralthousanddifferentmedicinalsubstancesusedb
Whenwegotthere,whatwereleftbehind______emptybottles.
WhichofthefollowinghasnothingtodowithScreenblast?
Itisreportedthatanewmachine______byhiminafewweeks.
随机试题
优质土豆的感官特征是________。
旋光度测定法检查的杂质是
足太阴脾经的原穴是()足太阴脾经的郄穴是()
A.开口初、闭口末清脆单声弹响B.开口末、闭口初清脆单声弹响C.最大开口位关节弹响D.连续摩擦音或多声破碎音E.一般无弹响翼外肌功能亢进时可表现为颞颌关节
下列电气工程验收资料中,属于安全和功能检测资料的是()。
大学生思维发展的基本特点是:处于由___________向辩证逻辑思维过渡的阶段;在常规思维继续发展的同时,创造思维也在显著发展;在思维能力高度发展的同时,形成了对思维的元认知。
阅读以下文字,完成以下问题:肠脑位于食管、胃脏、小肠与结肠内层组织的鞘中,含有神经细胞、神经传递质、蛋白质和复杂的环行线路。结肠炎、过敏性肠综合征等都与肠脑内产生的问题有关。肠脑中几乎能找到颅脑赖以运转和控制的所有物质,如血清素、多巴胺、谷氨酸、
A、Chicago.B、NewYork.C、Boston.D、Detroit.A细节题。文中出现了几个不同的地点,而Black先生要去的是芝加哥。
Theriseofradioandtelevisionbroadcastingmadenewcompetitivethreatsfornewspapers.Radiobeganofferingthe【M1】
A、Tomakeabusinessreporttothewoman.B、Tobeinterviewedforajobinthewoman’scompany.C、Toresignfromhispositionin
最新回复
(
0
)