| 单词 | proctosigmoidoscopy | 
| 释义 | > as lemmasproctosigmoidoscopy   proctosigmoidoscopy  n.  Brit.  , U.S.   Medicine and Surgery visual examination of the rectum and sigmoid colon; use of a proctosigmoidoscope; an instance of this.ΚΠ 1936    Amer. Jrnl. Surg. 32 95/2  				Routine proctosigmoidoscopy is recommended as part of every complete physical examination. 1957    Gastroenterology 32 704 		(title)	  				The incidence of polyps in 500 proctosigmoidoscopies in asymptomatic young men. 1990    Dis. Colon & Rectum 30 722/1  				The debate as to whether colonoscopy or flexible proctosigmoidoscopy is the most cost-effective tool with which to screen the first-degree relatives of patients with colorectal cancer. 2001    C. Palahniuk Choke xxxvii. 233  				Really this would take an abdominal roentgenogram and proctosigmoidoscopy... Picture the sigmoidoscope view on a television screen, a bright light pushing along a clenched tunnel of mucosal tissue. < as lemmas  | 
	
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