case_images: PMC5835304_01
case_images: Ultrasonography of the left parotid gland.
case_images: CRIM2018-7301727.001.jpg
case_images: PMC5835304_01_CRIM2018-7301727.001.jpg
case_images: fig1
case_images: Ultrasound examination revealed a 3 cm polygonal hypoechoic lesion with well-defined smooth margins (Figure 1) so that our preoperative differential diagnosis included both benign and malignant neoplasms.
case_images: Microscopic image of the tumour of the left parotid gland (a, b), right parotid gland (c, d), and renal cancer (e).
case_images: CRIM2018-7301727.002.jpg
case_images: PMC5835304_01_CRIM2018-7301727.002.jpg
case_images: fig2
case_images: Therefore, the immunohistological staining presented a metastasis of a clear cell renal cell carcinoma and was consistent in its immunohistochemical pattern with the previously treated renal cell carcinoma (Figure 2).