title: [Bladder leiomyoma].
abstract: OBJECTIVE
  Mesenchymal benign tumours of the urinary bladder are rare and account for 1%-5% of all bladder tumours. The leiomyoma is the most common and constitute 46.6% of this group. 25 cases have been described in the national literature. We report an additional case of leiomyoma of the bladder.
  
  
  METHODS
  A 53 year-old man with a chronic history of urinary frequency and microscopic hematuria. Physical examination was normal. An excretory urography demonstrated a filling defect in the right bladder wall. The cystoscopy confirmed the tumour, covered with normal bladder mucosa. The echography showed a solid tumour. A computerised tomography scan and magnetic resonance showed a sessile lesion in the right bladder wall with low-intermediate intensity signal and with normal signal of muscle, mucosa and perivesical fat. The clinical diagnosis was leiomyoma of the bladder. Partial cystectomy was done and the histological diagnosis confirmed the clinical diagnosis.
  
  
  CONCLUSIONS
  The leiomyoma of the bladder is a rare tumour however it should be considered in the differential diagnosis before surgical treatment.
authors.affiliation: Servicio de Urología, Hospital Xeral de Vigo, Pontevedra.
authors.forename: A
authors.initials: A
authors.lastname: Ojea Calvo
authors.forename: A
authors.initials: A
authors.lastname: Núñez López
authors.forename: A
authors.initials: A
authors.lastname: Alonso Rodrigo
authors.forename: B
authors.initials: B
authors.lastname: Rodríguez Iglesias
authors.forename: J
authors.initials: J
authors.lastname: Benavente Delgado
authors.forename: J M
authors.initials: JM
authors.lastname: Barros Rodríguez
authors.forename: M
authors.initials: M
authors.lastname: Butrón Vila
authors.forename: J L
authors.initials: JL
authors.lastname: Nogueira March
mesh_terms: D006801:Humans; D007889:Leiomyoma / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D001749:Urinary Bladder Neoplasms / Q000175:diagnosis*