[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.
Llarena Ibarguren
Roberto
R
Servicio de Urología, Hospital de Cruces, Servicio Vasco de Salud, Pz. de Cruces s/n 48903 Baracaldo, Vizcaya, España.
Eizaguirre Zarzai
Beatriz
B
Lecumberri Castaños
David
D
Padilla Nieva
Jesús
J
Crespo Atín
Víctor
V
Martín Bazaco
Jesús
J
Azurmendi Sastre
Víctor
V
Pertusa Peña
Carlos
C
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