title: Salivary neoplasms presenting with radiologic venous invasion: an imaging pearl to diagnosing metastatic renal cell carcinoma.
abstract: We report the case of a 64-year-old otherwise healthy woman who presented with left facial swelling. Imaging of the neck revealed multiple masses in the salivary and thyroid glands. The mass in the left parotid gland was associated with an intravenous extension into the retromandibular, facial and internal jugular veins in the left neck. Based on multiplicity of these masses and the presence of radiologic venous invasion, the diagnosis of metastatic renal cell carcinoma (RCC) was suggested on imaging, which was subsequently confirmed on systemic workup and pathology findings. Although RCC metastasizes to the salivary glands, the primary presentation of RCC with both salivary and thyroid gland masses is extremely rare, with only a few reports. The above feature and its imaging diagnosis based on local venous invasion are the highlights of this report.
authors.affiliation: Department of Radiology, Neuroradiology Division, University of Toronto, Sunnybrook Health Sciences Center, Toronto, Ont., Canada.
authors.forename: Pejman
authors.initials: P
authors.lastname: Maralani
authors.forename: Suyash
authors.initials: S
authors.lastname: Mohan
authors.forename: Christopher H
authors.initials: CH
authors.lastname: Rassekh
authors.forename: Laurie A
authors.initials: LA
authors.lastname: Loevner
mesh_terms: D002292:Carcinoma, Renal Cell / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary*; D005260:Female; D006801:Humans; D007601:Jugular Veins / Q000473:pathology; D007680:Kidney Neoplasms / Q000473:pathology*; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009055:Mouth / Q000098:blood supply*; D009361:Neoplasm Invasiveness; D010307:Parotid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary*; D013365:Submandibular Gland Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000556:secondary*; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary; D014057:Tomography, X-Ray Computed; D014680:Veins / Q000473:pathology