title: [Spontaneous regression of venous thrombus in a case of renal carcinoma].
abstract: OBJECTIVE
  To report the first case of spontaneous regression of renal vein and inferior vena cava thrombus in a patient with renal clear cell carcinoma.
  
  
  RESULTS
  We describe the case of a woman with the diagnosis of renal mass with venous thrombus of the renal vein and inferior vena cava. Extension studies before radical nephrectomy showed regression of the thrombus which was confirmed during nephrectomy.
  
  
  CONCLUSIONS
  Spontaneous regression of clear cell renal carcinoma metastases is estimated below 1 % of the cases. This is the first case report of regression of a tumoral thrombus of the renal vein and inferior vena cava.
authors.affiliation: Hospital Universitario Central de Asturias, Oviedo, Asturias, España.
authors.forename: Antonio
authors.initials: A
authors.lastname: Jalón Monzón
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Regadera Sejas
authors.forename: Jorge
authors.initials: J
authors.lastname: García Rodríguez
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Martínez Gómez
authors.forename: Alberto
authors.initials: A
authors.lastname: Sánchez Trilla
authors.forename: Jesús Maria
authors.initials: JM
authors.lastname: Fernández Gómez
authors.forename: Juan Javier
authors.initials: JJ
authors.lastname: Rodríguez Martínez
authors.forename: Oscar
authors.initials: O
authors.lastname: Rodríguez Faba
authors.forename: Roberto Carlos
authors.initials: RC
authors.lastname: González Alvarez
authors.forename: Miguel
authors.initials: M
authors.lastname: Alvarez Múgica
mesh_terms: D000368:Aged; D002292:Carcinoma, Renal Cell / Q000556:secondary*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D009365:Neoplasm Regression, Spontaneous; D009360:Neoplastic Cells, Circulating; D012082:Renal Veins; D014682:Vena Cava, Inferior