Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2004-1-12
pubmed:abstractText
A 73-year-old man presented with an abnormal gastric shadow during a check-up of atomic bomb survivors. Radiological examination and endoscopy of the upper gastrointestinal tract revealed a protruding tumor, type 0-I+IIa, on the lesser curvature of the midstomach. An initial diagnosis of early gastric cancer was made and a segmental gastrectomy was planned. However, distal gastrectomy with D3 lymph node dissection was necessary, because intraoperative frozen section showed that the paraaortic lymph nodes (N3) were positive for cancer. The tumor in the resected specimen was, microscopically, a well-differentiated tubular adenocarcinoma (tub1) with pT2 (MP), pN3, ly2, and v1, in final (f) stage IV. The tumor cells of the type 0-I segment appeared as gastric phenotype and those of the type 0-IIa segment as intestinal phenotype. The border between the two was distinct. The tumor had focally invaded the muscularis propria where only the gastric phenotype was shown and the histological type became less differentiated. Thus, special attention should be paid to possible unexpected deep-wall invasion and lymph node metastasis in well-differentiated adenocarcinomas of the gastric phenotype. Further, in this patient, diffusely proliferating low-grade lymphoma was also observed incidentally in the gastric mucosa within and around the carcinoma. This was diagnosed as mucosa-associated lymphoid tissue (MALT)-type lymphoma with aberrant expression of BCL10. Finally, this case was considered to be a colliding gastric and intestinal phenotype well-differentiated adenocarcinoma of the stomach developed in an area involved by MALT-type lymphoma. Because no Helicobacter pylori was detected throughout the mucosae and the patient had no history of its infection, the three tumors may have developed under the same conditions as those seen in Helicobacter pylori infection, but without this infection.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
1436-3291
pubmed:author
pubmed:issnType
Print
pubmed:volume
6
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
270-6
pubmed:dateRevised
2007-11-15
pubmed:meshHeading
pubmed:year
2003
pubmed:articleTitle
Colliding gastric and intestinal phenotype well-differentiated adenocarcinoma of the stomach developing in an area of MALT-type lymphoma.
pubmed:affiliation
Division of Gastroenterological Surgery, Cancer Institute Hospital, Tokyo, Japan.
pubmed:publicationType
Journal Article, Case Reports