{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,14]],"date-time":"2025-12-14T16:43:14Z","timestamp":1765730594088,"version":"3.48.0"},"reference-count":11,"publisher":"BMJ","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J Clin Pathol"],"published-print":{"date-parts":[[1988,4]]},"abstract":"<jats:p>To study the appearance and distribution of the normal mucosa at the gastroduodenal junction in man, 14 specimens of normal mucosa, eight obtained during pylorplasty, and \"relatively\" normal specimens from the distal stomach and whole duodenum were examined microscopically. Three histologically distinct types of normal duodenal mucosa were found at this junction. These were termed antral type duodenal mucosa, transitional type duodenal mucosa (which is also referred to as gastric surface epithelial metaplasia), and jejunal type duodenal mucosa. Antral type duodenal mucosa appeared as a series of finger-like processes 1-3 mm long, circumferentially located around the junction of the antrum and duodenum; transitional type duodenal mucosa extended 2-3 mm beyond this; and the rest of the mucosa was jejunal type duodenal mucosa. The mucosa of the pyloric antrum can therefore lie adjacent to antral type duodenal mucosa, or adjacent to either of the components of transitional type duodenal mucosa.<\/jats:p>","DOI":"10.1136\/jcp.41.4.393","type":"journal-article","created":{"date-parts":[[2007,6,9]],"date-time":"2007-06-09T00:50:46Z","timestamp":1181350246000},"page":"393-396","source":"Crossref","is-referenced-by-count":9,"title":["Definition of gastroduodenal junction in healthy subjects."],"prefix":"10.1136","volume":"41","author":[{"given":"H H","family":"Lawson","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[1988,4,1]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"129","DOI":"10.1159\/000197701","article-title":"The histological classification of duodenitis in fibreoptic biopsy specimens","volume":"13","author":"R, I.Whitehead; M, Roca; DD, Meikle; J, Skinner; SC, Truelove","year":"1975","unstructured":"I Whitehead R, Roca M, Meikle DD, Skinner J, Truelove SC. 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J Clin Pathol"},{"key":"ref_10","first-page":"222","article-title":"Duodenitis-any progress?","volume":"1","author":"Anonymous","year":"1985","unstructured":"Anonymous. Duodenitis-any progress? [Editorial.] Lancet 1985;ii: 1 222-3.","journal-title":"[Editorial.] Lancet"},{"issue":"26","key":"ref_11","first-page":"1032","article-title":"Duodenal bulb plasma cells in duodenitis and duodenal ulceration","volume":"1985","author":"Scott, B.B.; Goodall, A.; Stephenson, P.; Jenkins, D.","unstructured":"Scott BB, Goodall A, Stephenson P, Jenkins D. Duodenal bulb plasma cells in duodenitis and duodenal ulceration. 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