title: Renal cell carcinoma presenting as a primary parotid gland tumor.
abstract: A 62-year-old Caucasian man presented with a slow-growing 3 by 3 cm. mass in the left preauricular region. The pathologist's report on the surgical specimen favored a diagnosis of acinic cell carcinoma but recommended evaluation of the patient for possible metastatic renal cell carcinoma. A subsequent intravenous pyelogram and arteriogram revealed the presence of a mass in the right kidney. The lesion proved to be a renal cell carcinoma which was microscopically indistinguishable from the parotid tumor.
mesh_terms: D000230:Adenocarcinoma / Q000473:pathology / Q000556:secondary*; D002277:Carcinoma / Q000473:pathology; D003937:Diagnosis, Differential; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000473:pathology / Q000556:secondary*