[Solitary pararenal fibrous tumor].
OBJECTIVE
To report a rare clinical case of solitary pararenal fibrous tumor, analyzing its pathological characteristics and prognosis by a bibliographic review.


RESULTS
We present the case of a 36-year-old male consulting for right flank colic pain, which was diagnosed of a solid mass in the lower pole of the right kidney and underwent right radical nephrectomy. Pathological study of the surgical specimen showed the presence of a solitary pararenal fibrous tumor.


CONCLUSIONS
Solitary fibrous tumor is a rare neoplasia, being its pararenal localization even rarer. It is a tumor with benign behavior in up to 90% of the cases. The immunohistochemical study is the key to diagnosis.
Alvarez Múgica
Miguel
M
Servicio de Urología I, Hospital Universitario Central de Asturias, Oviedo, España. malvarez79@mixmail.com
Jalón Monzón
Antonio
A
Fernández Gómez
Jesús María
JM
Rodríguez Martínez
Juan Javier
JJ
Martín Benito
José Luis
JL
Rodríguez Faba
Oscar
O
González Alvarez
Roberto Carlos
RC
Rodríguez Robles
Laura
L
Regaderas Sejas
Javier
J
Escaf Barmadah
Sawfan
S
D000328:Adult; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging / Q000601:surgery; D008297:Male; D018218:Neoplasms, Fibrous Tissue / Q000000981:diagnostic imaging / Q000601:surgery; D011859:Radiography