Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
12
pubmed:dateCreated
2001-1-11
pubmed:abstractText
To evaluate the immunohistochemical expression of thyroid transcription factor 1 (TTF1) in primary and metastatic pulmonary adenocarcinomas, and test the diagnostic accuracy of this antibody, two surgical pathologists independently evaluated 34 cases of adenocarcinomas in the lung without clinical data and tried to distinguish between primary and metastatic cases using histological criteria exclusively. Thirteen cases were primary in the lung and 21 were metastases of extrapulmonary adenocarcinomas: 6 from the endometrium, 4 from the ovary, 3 from the colon, 2 from the kidney, 2 from the breast, 2 from the liver and 1 from the prostate. Afterward, the immunoreactivity of TTF1 in these neoplasms was evaluated and correlated with morphological and clinical data. The two pathologists were able to diagnose only 5 out of 13 cases of primary lung adenocarcinomas (sensitivity of 38.46%) and also misdiagnosed two primary malignancies as metastases. After correlation with TTF1 data, the sensitivity increased to 61.53%. The specificity of TTF1 was 100%. In conclusion, TTF1 is a highly specific marker for primary lung adenocarcinomas, and should be included in a panel of antibodies for the differential diagnosis between primary and metastatic adenocarcinomas of the lung.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0344-0338
pubmed:author
pubmed:issnType
Print
pubmed:volume
196
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
835-40
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Is TTF1 a good immunohistochemical marker to distinguish primary from metastatic lung adenocarcinomas?
pubmed:affiliation
Institute of Pathology and Molecular Immunology at Porto University, IPATIMUP, Portugal.
pubmed:publicationType
Journal Article, Evaluation Studies