Rare Case of Clear Cell Renal Cell Carcinoma Metastasizing to Contralateral Kidney and Ipsilateral Parotid more than five Years following Nephrectomy

Abstract

Summary Backgroung/Aim: Salivary gland malignancies are rare, with only a fraction due to metastases. We report a rare case of the Clear Cell Renal Cell Carcinoma (CCRCC), a subtype of the Renal Cell Carcinoma (RCC), metastasizing to the parotid gland more than five years following nephrectomy. Case report: A 75-year-old female presented with a unilateral left parotid mass that was growing over the period of 18 months. After clinical and laboratory examinations, the patient underwent left partial superficial parotidectomy with preservation of the facial nerve. The significance of the patient’s history of the CCRCC was pivotal to the histopathological diagnosis of a metastatic CCRCC to the parotid. Conclusions: The unpredictable nature of the RCC results in the need for a long period of follow-up, as well as having a high degree of suspicion of metastasis in a patient presenting with a medical history of the RCC and a parotid mass.