Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1979-8-29
pubmed:abstractText
The pathogenesis of juvenile polyps of the colon was studied in a patient with multiple juvenile polyposis who underwent proctocolectomy for rectal carcinoma and antrectomy for associated polyps of the stomach. Numerous polyps up to 3 cm in diameter were present predominantly in the cecum and rectum, and in addition there was an adenocarcinoma in the rectum. Microscopically there were five categories of lesions: 1) Hyperplastic epithelial foci and small hyperplastic polyps; 2) Typical Juvenile polyps; 3) Juvenile polyps with focal adenomatous epithelium; 4) Adenomas; and 5) and adenocarcinoma. The five categories could represent a pathogenetic sequence, beginning with epithelial hyperplasia, leading to small hyperplastic polyps which become inflamed and enlarge, forming juvenile polyps. Focal adenomatous areas which develop in some juvenile polyps might give rise to adenomas and in turn lead to carcinoma. Although juvenile polyps are generally not considered to be premalignant lesions, this case demonstrates that neoplastic changes may occur in juvenile polyps in certain individuals, and raises the possibility that these may on occasion give rise to carcinoma.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0008-543X
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1906-13
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1979
pubmed:articleTitle
Pathogenesis of colonic polyps in multiple juvenile polyposis: report of a case associated with gastric polyps and carcinoma of the rectum.
pubmed:publicationType
Journal Article, Case Reports