title: Orbital pulsatile metastasis as initial presenting sign of metastatic clear cell renal carcinoma.
abstract: METHODS
  We present the case of a 56 year-old male with a pulsating lesion in the temporal region of the left orbit as presenting sign of a renal cell carcinoma. A review is also presented of all cases of orbital metastases diagnosed in our hospital between 1957 and 2012.
  
  
  CONCLUSIONS
  Carcinoma is the most common malignancy involving the kidney but, only rarely does it metastasize to the orbit. As these tumors can be confused with other amelanotic or vascular tumors, a high index of suspicion is required for early detection and management of the primary tumor.
authors.affiliation: Hospital Dr. Luis Sánchez Bulnes, Asociación para Evitar la Ceguera IAP, México D.F., México. Electronic address: icg_ct@yahoo.es.
authors.forename: I
authors.initials: I
authors.lastname: Coloma-González
authors.affiliation: Hospital Dr. Luis Sánchez Bulnes, Asociación para Evitar la Ceguera IAP, México D.F., México.
authors.forename: A
authors.initials: A
authors.lastname: Ceriotto
authors.affiliation: Hospital Dr. Luis Sánchez Bulnes, Asociación para Evitar la Ceguera IAP, México D.F., México.
authors.forename: E
authors.initials: E
authors.lastname: Amezquita-García
authors.affiliation: Hospital Dr. Luis Sánchez Bulnes, Asociación para Evitar la Ceguera IAP, México D.F., México.
authors.forename: J
authors.initials: J
authors.lastname: Flores-Preciado
authors.affiliation: Hospital Dr. Luis Sánchez Bulnes, Asociación para Evitar la Ceguera IAP, México D.F., México.
authors.forename: G
authors.initials: G
authors.lastname: Salcedo-Casillas
mesh_terms: D002292:Carcinoma, Renal Cell / Q000098:blood supply / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary*; D003951:Diagnostic Errors; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D008067:Lipoma / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D009918:Orbital Neoplasms / Q000098:blood supply / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000556:secondary*; D011673:Pulsatile Flow; D014057:Tomography, X-Ray Computed
keywords: Carcinoma renal; Malignant orbital tumor; Metástasis orbitaria; Orbital metastases; Pulsatile tumor of the orbit; Renal cell carcinoma; Tumor maligno orbitario; Tumor pulsátil orbitario