Isolated Renal Metastasis Mimicking Primary Renal Cell Carcinoma

Authors: Letendre J* , Sun C , Lebeau T and Royal V

DOI: 10.23880/oajun-16000109

Volume 1, Issue 2

Abstract

The majority of isolated renal masses are found to be primary renal cell carcinoma. However, in some rare cases, such a presentation can reveal an underlying metastasis of an occult neoplasm elsewhere. We report here a case of papillary thyroid carcinoma that presented as an isolated renal mass in an 80-years-old woman with no history of thyroid cancer. The patient underwent a radical nephrectomy by laparoscopy after a negative extension work-up for a suspected primary RCC. Pathology later confirmed it as a metastasis of papillary thyroid carcinoma, prompting a thyroid biopsy, which came back positive. PET scan showed no other metastasis, prompting total thyroidectomy and adjuvant 200mCi of I₁₃₁. As of today, she remains in complete remission. In the presence of a large isolated renal mass, clinicians should remain suspicious of potential metastatic disease as it can allow for early detection and management of the primary neoplasm

Keywords: Cell Carcinoma; Nephrectomy; Thyroidectomy; Endocrinologist; Papillary Carcinoma

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