title: [Stromal tumor of the rectum and leiomyosarcoma of the prostate as a cause of urinary syndrome attributable to BPH].
abstract: OBJECTIVE
  To discuss the classifications of patients with lower urinary tract symptoms ascribed to BPH, in order to define the indication for treatment for patients with similar features but of a different etiology. The literature is also reviewed.
  
  
  RESULTS
  Two patients, aged 62 and 63 years, diagnosed as having BPH were found to have a gastrointestinal stromal tumor (GIST) and a leiomyosarcoma of the prostate, respectively. The first patient had undergone retropubic resection. Frozen section analysis revealed a GIST. The second patient had undergone TURP twice. A perineal biopsy at the last medical examination showed a leiomyosarcoma of the prostate. This patient finally underwent pelvic tumorectomy. The international classification of BPH is discussed: PQSF (P: prostatic weight determined by transrectal US or DRE; Q: quality of life assessment; S: international prostate symptom score (IPSS); F: maximum urinary flow rate by uroflowmetry--Qmax).
  
  
  CONCLUSIONS
  The classifications are practical, but should be improved. In our view, details useful in orienting the diagnosis could be lost by oversimplification.
authors.affiliation: Servicio de Urología, Hospital de Navarra, Pamplona, España.
authors.forename: J A
authors.initials: JA
authors.lastname: Cuesta Alcalá
authors.forename: I
authors.initials: I
authors.lastname: Pascual Piédrola
authors.forename: J L
authors.initials: JL
authors.lastname: Arrondo Arrondo
authors.forename: J
authors.initials: J
authors.lastname: Aldave Villanueva
authors.forename: A
authors.initials: A
authors.lastname: Solchaga Martínez
authors.forename: L
authors.initials: L
authors.lastname: Ripas Saldías
authors.forename: V
authors.initials: V
authors.lastname: Grasa Lanau
authors.forename: M
authors.initials: M
authors.lastname: Ponz González
authors.forename: A
authors.initials: A
authors.lastname: Ipiens Aznar
mesh_terms: D006801:Humans; D007890:Leiomyosarcoma / Q000150:complications*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary; D011470:Prostatic Hyperplasia / Q000150:complications*; D011471:Prostatic Neoplasms / Q000150:complications*; D012004:Rectal Neoplasms / Q000150:complications*; D013577:Syndrome; D014555:Urination Disorders / Q000209:etiology*
vernacular_title: Tumor estromal de recto y leiomiosarcoma de próstata como causa de síndrome miccional atribuible a HBP.