Case Reports in Endocrinology / 2018 / Article / Fig 1

Case Report

Nephrectomy for Metastatic Kidney Tumor in Patients with Differentiated Thyroid Cancer: A Report of Two Cases

Figure 1

(a) Computed tomography showed the right kidney tumor (arrow). (b) The right nephrectomy specimen contained a grayish tumor measuring 5.5cm × 5.0 cm on the upper pole (arrow). (c, d) Histologic sections of the resection specimen showed that the tumor formed a papillary structure, and the lumen was filled with eosinophilic substances considered colloids. Individual cancer cells had nuclear grooves, and findings suggestive of nuclear inclusions were also observed (arrow). (c): Original magnification x200, (d): Original magnification x400. (e, f) Immunohistochemistry revealed positive for thyroid transcription factor 1 (e) and thyroglobulin (f). Original magnification x400.
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