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III. Proximal and Distal Polyp Relationships

Jerry Drexler, MD, FACP

Arch Intern Med. 1971;127(3):466-469.

Abstract
Four hundred and fifty-six distal polyps were detected in 160 (53%) of 300 patients over 45 years of age examined by routine proctosigmoidoscopy after July 1, 1965. Sixty-five percent of these lesions were multiple, 97% were 5 mm or less in size, and 75% were located in the middle third segment of the rectocolon visualized. Sixteen proximal polyps were revealed in 8 (3.8%) of 211 patients examined by roentgenogram of the colon. Half of these lesions were less than 1 cm in size. Higher up polyps were roentgenologically demonstrated in patients with distal polyps almost twice as frequently as in those with normal results of endoscopy. A significantly higher incidence of both distal and proximal polyps was found in cigarette smokers and ex-smokers as compared with nonsmokers. Selecting smokers rather than those with distal polyps for subsequent proctologic procedures should efficiently increase the yield of benign adenomatous polyps, at half the cost of similar studies in an unselected population.

Author Affiliations
Los Angeles

From the Department of Internal Medicine, Kaiser Foundation Hospital, and the Southern California Permanente Medical Group, Los Angeles.

Footnotes
Received for publication March 2, 1970; accepted June 24,

Reprint requests to 130 N La Cienega Blvd, Los Angeles 90048.

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ABSTRACT