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Considerations on Gastrocamera Examination of the Pylorus and the Prepyloric Area H. Kuramata 1 , F. Unayama 1 , S. Eto 1 , A. Tsuboi 2 , K. Kazato 2 1Dept. of Endocscopy, Kanagawa Seijin-Byo Center 2Dept. of Radiology, Kanagawa Seijin-Byo Center pp.1015-1025
Published Date 1971/7/25
DOI https://doi.org/10.11477/mf.1403111660
  • Abstract
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 In our experience, gastrocamera examinations of lesions in the pylorus and prepyloric area too often have not furnished enough diagnostic accuracy. Occasionally, a mere contracted fold of the lesser curvature screens the pyloric ring from the visual field of the gastrocamera if inserted inadequately. Many failures are also due to dark and indistinct pictures taken too far away, in which small lesions are often easily overlooked.

 Probably for this reason, we might have missed early cancer in this area more than we ought, and that may account for fewer incidence of early cancer here as compared with advanced one that shows here a predilection site, as is generally recognized.

 A few cases are described in this paper that have been roentgenological diagnosis of either duodenal ulcer or elevated lesion in the pylorus area with no cancer confirmation by gastrocamera. Nevertheless, in three of them, final diagnosis of cancer has been corroborated by successful biopsy performed four or five years later since the initial x-ray examination. In another case, a small lesion eluded our observation owing to deformation of this area.

 In our series of ordinary gastrocamera examinations of this area, the rate of successful exposures was only 29.2 per cent. Contrary to our expectations, it was only 30.2 per cent even in a series of thorough examinations. Duodenofiberscope is thus a very useful adjunct for surmounting limited diagnostic ability inherent in such a blind technic as gastrocamera examination.


Copyright © 1971, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1219 印刷版ISSN 0536-2180 医学書院

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