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18F-FDG PET/CT detects Metastatic Renal Cell Carcinoma Masquerading as Primary Breast Malignancy

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Abstract

We present the case of a 36-year-old woman who underwent 18F-FDG PET/CT with suspicion of a primary breast malignancy. However, PET/CT detected an occult renal cell carcinoma with metastases to the thyroid, breast, lungs and lymph nodes. Thyroid and breast metastases are atypical metastatic sites of renal cell carcinoma. Breast metastases from extra mammary tissue are extremely rare, more so from renal cell carcinoma. Histopathologic confirmation of the breast lesions is imperative to avoid unnecessary mastectomy and imaging can help in raising the suspicion of metastatic involvement versus primary breast malignancy.

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Authors and Affiliations

  1. Department of Nuclear Medicine and PET/CT, Post Graduate Institute of Medical Education and Research, Chandigarh, 160012, India

    Ashwin Singh Parihar, Bhagwant Rai Mittal, Shelvin Kumar Vadi & Rajender Kumar

  2. Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh, India

    Kaniyappan Nambiyar & Bishan Radotra

  3. Department of General Surgery, Post Graduate Institute of Medical Education and Research, Chandigarh, India

    Lileswar Kaman

Authors
  1. Ashwin Singh Parihar
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  2. Bhagwant Rai Mittal
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  3. Shelvin Kumar Vadi
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  4. Rajender Kumar
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  5. Kaniyappan Nambiyar
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  6. Bishan Radotra
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  7. Lileswar Kaman
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Corresponding author

Correspondence to Bhagwant Rai Mittal.

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Conflict of Interest

Ashwin Singh Parihar, Bhagwant Rai Mittal, Shelvin Kumar Vadi, Rajender Kumar, Kaniyappan Nambiyar, Bishan Radotra, and Lileswar Kaman declare that they have no conflict of interest.

Ethical Approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. For this type of study formal consent is not required.

Informed Consent

The institutional review board of our institute approved this retrospective study, and the requirement to obtain informed consent was waived.

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Parihar, A.S., Mittal, B.R., Vadi, S.K. et al. 18F-FDG PET/CT detects Metastatic Renal Cell Carcinoma Masquerading as Primary Breast Malignancy. Nucl Med Mol Imaging 52, 475–478 (2018). https://doi.org/10.1007/s13139-018-0553-6

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  • DOI: https://doi.org/10.1007/s13139-018-0553-6

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