Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1983-12-17
pubmed:abstractText
The presence of psammoma bodies in carcinoid tumors of the gastrointestinal tract is a rare occurrence; it has also been reported to be associated with features of somatostatin production by the tumor cells. The morphologic features of three such tumors arising in the duodenum were studied by a combination of histochemical, immunocytochemical, and ultrastructural techniques in an effort to delineate their secretory profile and further subclassify them. All tumors showed a mixed architectural pattern with prominent areas of glandular differentiation. The psammoma bodies were almost exclusively located within the glandular lumina. In each instance, the majority of tumor cells showed histochemical and immunocytochemical features of somatostatin-containing cells, and one tumor studied ultrastructurally showed numerous large- and small-sized intracytoplasmic secretory granules, both of which contained somatostatin. In contrast to other endocrine tumors of the duodenum that frequently have a multihormonal secretory profile, psammomatous duodenal carcinoids are associated with the exclusive presence of somatostatin within tumor cells. While many more of such examples of this uncommon tumor need to be systematically investigated for their immunocytochemical and ultrastructural characteristics, duodenal somatostatinomas need to be included in the differential diagnosis of psammomatous tumors.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0147-5185
pubmed:author
pubmed:issnType
Print
pubmed:volume
7
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
653-65
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Psammomatous somatostatinomas of the duodenum.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Case Reports, Research Support, Non-U.S. Gov't