[Bilateral renal solitary fibrous tumor].
OBJECTIVE
We report the first case of bilateral renal solitary fibrous tumor diagnosed in a patient suffering from tuberous sclerosis.


METHODS
From the bibliographic review, only 15 cases of solitary fibrous tumor have been described in the kidney. We did not find any case of simultaneous bilateral involvement. We did not find any case described in a patient with tuberous sclerosis either, as the present case, being a 51-year-old female with presenting with a big abdominal mass arising from the left kidney (25 cm) and another 2 cm mass in the right kidney.


CONCLUSIONS
We emphasize the extreme rarity of this tumor in the kidney. It has benign characteristics and behavior, and good prognosis, but requires surgical treatment to obtain a proper histopathologic diagnosis, based on immuno-histochemical studies.
Servicio de Urología, Hospital de Cruces, Servicio Vasco de Salud, Pz. de Cruces s/n 48903 Baracaldo, Vizcaya, España.
Roberto
R
Llarena Ibarguren
Beatriz
B
Eizaguirre Zarzai
David
D
Lecumberri Castaños
Jesús
J
Padilla Nieva
Víctor
V
Crespo Atín
Jesús
J
Martín Bazaco
Víctor
V
Azurmendi Sastre
Carlos
C
Pertusa Peña
D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000150:complications / Q000473:pathology*; D008875:Middle Aged; D018218:Neoplasms, Fibrous Tissue / Q000150:complications / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000150:complications / Q000473:pathology*; D014402:Tuberous Sclerosis / Q000150:complications