The importance and reliability of thyroid transcription factor-1 expression to differential diagnosis in primary and metastatic lung cancers

Volume: 47 Number: 3 September 1, 2008
  • Nart D
  • Sarsık B
  • Doğanavşargil B
  • Sezak M
  • Yaman B
  • Çiriş M
  • Veral A
EN TR

The importance and reliability of thyroid transcription factor-1 expression to differential diagnosis in primary and metastatic lung cancers

Abstract

Introduction: Thyroid transcription factor-1 (TTF-1) has an important role in the morphogenesis and early differantiation of the fetal tyhroid, brain and lung. Tyhroid and lung carcinomas express TTF-1 in a high proportion. TTF-1 immunostaining is commonly used in the diagnosis of lung adenocarcinomas. In this study , TTF-1 immunreactivity has been examined in different types of primary lung carcinomas and lung metastases from different sites. The reliability of TTF-1 has been studied in the diagnosis of primary and metastatic lung carcinomas. Materials and Methods: One hundred eleven primary lung carcinomas and 23 metastatic lung carcinomas have been included. TTF-1 was positive in 78 of 111 primary lung carcinomas (%70). This ratio was very high especially in small cell carcinomas(%100) and adenocarcinomas(%83). In the metastatic group, diffuse TTF-1 immunoreactivity was seen in thyroid cancer metastasis, as expected and TTF-1 expression was not seen in other metastatic carcinomas. Results and Discussion: Our study shows that TTF-1 has a great value in differential diagnosis of primary and metastatic lung carcinomas, and it's a sensitive (%70) and spesific (%100) immunohistochemical method in routine studies.

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Primary Language

Turkish

Subjects

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Journal Section

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Authors

Nart D

Sarsık B

Doğanavşargil B

Sezak M

Yaman B

Çiriş M

Veral A

Publication Date

September 1, 2008

Submission Date

September 1, 2008

Acceptance Date

-

Published in Issue

Year 2008 Volume: 47 Number: 3

Vancouver
1.Nart D, Sarsık B, Doğanavşargil B, Sezak M, Yaman B, Çiriş M, Veral A. Primer ve metastatik akciğer tümörlerinin ayırıcı tanısında tiroid transkripsiyon faktör-1 ekspresyonunun önemi ve güvenilirliği. EJM [Internet]. 2008 Sep. 1;47(3):171-5. Available from: https://izlik.org/JA43KK59TE

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