Source:http://linkedlifedata.com/resource/pubmed/id/20393747
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2010-5-7
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pubmed:abstractText |
Pathologic and prognostic data of nine patients with mitochondrion-rich carcinomas (MRC) were compared retrospectively to data of 101 patients with conventional gastric adenocarcinomas. MRC was defined as a tumour composed predominantly, or entirely, of columnar adenocarcinoma cells with eosinophilic cytoplasm and a strong supranuclear immunoreactivity for antimitochondrial antibody. Electron microscopy confirmed supranuclear distribution of mitochondria in MRC while immunostaining pattern was irregular or absent in the remaining 101 cases. MRC exhibited a tubulopapillary or cribriform growth pattern with focal infiltration of neutrophils in the tumour stroma. Prominent necrosis was present including segmental and intraluminal "dirty necrosis", while mitotic and ki-67 proliferative rates were low. MRC showed immunohistochemical findings compatible with gastric differentiation (CK7+/CK20-/CDX-) When MRC were compared with non-MRC carcinomas, tumour size (< 4 cm vs >4 cm, P < 0.01) , frequency of lymph node metastases (11% vs. 80%, P < 0.01), low stage (I, II) at diagnosis (100% vs. 56%, P < 0.01), Goseki's group I (100% vs. 6%, P < 0.01), and better survival (0% vs. 70%, P < 0.01) differed significantly. Our results suggest that MRC of the stomach may be considered a low-grade malignancy with an excellent prognosis.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1432-2307
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
456
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
499-505
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pubmed:meshHeading |
pubmed-meshheading:20393747-Adenocarcinoma,
pubmed-meshheading:20393747-Aged,
pubmed-meshheading:20393747-Aged, 80 and over,
pubmed-meshheading:20393747-Female,
pubmed-meshheading:20393747-Homeodomain Proteins,
pubmed-meshheading:20393747-Humans,
pubmed-meshheading:20393747-Immunohistochemistry,
pubmed-meshheading:20393747-Keratin-20,
pubmed-meshheading:20393747-Keratin-7,
pubmed-meshheading:20393747-Male,
pubmed-meshheading:20393747-Microscopy, Electron,
pubmed-meshheading:20393747-Middle Aged,
pubmed-meshheading:20393747-Mitochondria,
pubmed-meshheading:20393747-Prognosis,
pubmed-meshheading:20393747-Retrospective Studies,
pubmed-meshheading:20393747-Stomach Neoplasms
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pubmed:year |
2010
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pubmed:articleTitle |
Mitochondrion-rich differentiated adenocarcinomas of the stomach: clinicopathological, immunohistochemical and electron microscopy study of nine cases.
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pubmed:affiliation |
Dipartimento di Patologia Umana, Policlinico Universitario, Messina, Italy. rosariocaruso@tin.it
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pubmed:publicationType |
Journal Article
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