title: Benign metastasizing pleomorphic adenoma presenting as a solitary kidney mass: imaging features.
abstract: Benign metastasizing pleomorphic adenoma is a rare condition that occurs in patients with a prior history of pleomorphic adenoma of the salivary glands. Metastases to the kidney are extremely rare, and, to the best of our knowledge, their imaging appearance on multiple cross-sectional imaging modalities has not been described. We present a solitary metastasis to the kidney in a 40-year-old woman. Computed tomography and magnetic resonance imaging demonstrated a 2.4 cm, well-marginated, enhancing mass that protruded into the renal sinus fat. Findings were indistinguishable from a primary renal malignancy. Prior history is crucial in suggesting the correct diagnosis.
authors: Division of Abdominal Imaging and Intervention, Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02115, USA.
authors: Mark A
authors: MA
authors: Vivian
authors: V Anik
authors: VA
authors: Sahni
authors: Alarice C
authors: AC
authors: Lowe
authors: Stuart G
authors: SG
authors: Silverman
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis / Q000473:pathology*; D000328:Adult; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000556:secondary*; D008279:Magnetic Resonance Imaging; D012468:Salivary Gland Neoplasms / Q000473:pathology*; D014057:Tomography, X-Ray Computed