Differential diagnosis of lung lesion in breast carcinoma: a metachronous neoplasm or metastasis?

Maddala, Raja Naga Mahesh and Udupa, Karthik S and Thomas, Joseph and Pai, Kanthilatha (2016) Differential diagnosis of lung lesion in breast carcinoma: a metachronous neoplasm or metastasis? BMJ Case Report. pp. 1-4. ISSN 1757-790X

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Abstract

A 34-year-old woman—a diagnosed case of pT1N1MO, stage IIa, estrogen and progesterone receptor positive (ER, PR) positive, Her2 negative carcinoma of the left breast—was managed with modified radical mastectomy and adjuvant chemotherapy. While planning for radiotherapy, she was found to have a well-defined enhancing lesion with spiculated margins in the superior segment of the right lower lobe along with a heterogeneously enhancing right hilar lymph node on CT. Histopathological evaluation of the lesion was suggestive of adenocarcinoma. The lesion was negative for ER, PR receptors, mammoglobin and gross cystic disease fluid protein. Thyroid transcription factor 1 (TTF-1) was positive, suggesting a primary lung adenocarcinoma rather than metastatic lesion from the breast. This case clearly signifies the importance of histopathological diagnosis of suspicious metastatic lesions in the setting of early breast cancer. We would also like to highlight the importance of TTF-1 in differentiating primary lung malignancy from metastasis.

Item Type: Article
Subjects: Medicine > KMC Manipal > Medicine
Medicine > KMC Manipal > Medical Oncology
Medicine > KMC Manipal > Pathology
Depositing User: KMC Library
Date Deposited: 28 Sep 2016 14:38
Last Modified: 28 Sep 2016 14:38
URI: http://eprints.manipal.edu/id/eprint/147042

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