Abstract
There are two practical ways of sampling small intestinal mucosa. Commonly a Crosby or similar capsule is swallowed, allowed to pass the ligament of Trietz and its level checked radiographically. A single ‘blind’ biopsy is taken, though some instruments allow multiple biopsies. Because visualization is impossible, only generalized lesions present at this level can be sampled. Increasingly, with the development of fibreoptics and gastroscopy, instruments are being passed through the pylorus, and duodenal biopsies taken under direct vision. It is probable that direct duodenal biopsy will have at least partly replaced blind jejunal biopsy within a few years and a knowledge of normal duodenal morphology is becoming essential to the practising histo- pathologist.
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© 1983 I. M. P. Dawson
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Dawson, I.M.P. (1983). Small Intestine: Normal Biopsy Appearances. In: Atlas of Gastrointestinal Pathology. Current Histopathology, vol 6. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-6583-6_10
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DOI: https://doi.org/10.1007/978-94-009-6583-6_10
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