Peyer's Patches in the Jejunum and Ileum Excluding Terninal Section: a roentgenographic study using fresh and fixed surgical specimens Kyosuke Ushio 1 1Department of Diagnostic Radiology, National Cancer Center Hospital pp.747-757
Published Date 1985/7/25
DOI https://doi.org/10.11477/mf.1403109904
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 Local immunological activity is carried on also in the small intestine, so the existence of a Peyer's patches comprised of aggregates of lymphatic follicles could be thought to have a close connection with the origin and progress of diseases in that region.

 It is well known that Peyer's patches are likely to be present at the end and lower section of the ileum. However, it is not clear this phenomenon is also able to be found at the entrance of the ileum excluding the terminal section and also in the jejunum.

 It is of special interest that Peyer's patches in the jejunum are rarely noted clearly in anatomical and histological literature. On account of this, we have taken both double contrast radiograph for fresh specimens and roentgenogram for fixed specimens in 13 cases resected for various reasons.

 Apart from whether or not Peyer's patches were present, and apart from its connection with the mesentery, we examined grossly and microscopicall the shape and surface structure characteristic to the section of the small intestine under study. The results of the examination were as follows: -  1) Peyer's patches could be found not only in the ileum excluding the terminal section of it but also in the jejunum.

 2) The size of the 25 Peyer's patches obtained from eight specimens able to be discerned ranged from 5 mm to 45 mm in diameter, giving an average size of 15.4 mm.

 3) Compared to the villi nodules of the surroundings, the mucosa of the sections occupied by the Peyer's patches present a coarse net-work pattern or a granulated pattern.

 4) Most of the Peyer's patches were present at the opposite side of the mesentery.

 5) In the Peyer's patches section there was either a shortage or a complete absence of Kerckring's folds.

 6) Some Peyer's patches were almost indiscernible grossly, and others which could be detected only on the roentgenogram of fixed specimens.

Copyright © 1985, Igaku-Shoin Ltd. All rights reserved.


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