ArticleInternal medicine (Tokyo, Japan)2025
Ovarian Cancer with TTF-1-positive Giant Pleural Dissemination.
Article in Internal medicine (Tokyo, Japan), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Thyroid transcription factor 1 (TTF-1) is primarily expressed in lung and thyroid cancers, but it has also been observed in other cancers. A 60-year-old woman presented with worsening dyspnea, pleural effusion, lung metastases, a right ovarian tumor, and para-aortic intra-abdominal lymph node metastasis. Biopsies from the pleural dissemination revealed TTF-1-positive adenocarcinomas. To confirm the presence of the primary organ, biopsies were performed on a para-aortic intra-abdominal lymph node that ascended from the ovaries. An adenocarcinoma positive for TTF-1 was identified, thus confirming the diagnosis of ovarian cancer. Our findings revealed that TTF-1 positivity does not always signify a lung cancer origin.
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