title: [Inflammatory prostatic pseudotumor (fibromyxoid pseudosarcomatous tumor)].
abstract: OBJECTIVE
  To report one case of an exceptional benign prostatic pathology and its differential diagnosis with malignant tumors.
  
  
  METHODS
  67-year-old male who suffers an acute urinary retention requiring bladder catheterization and subsequent negative catheter removal tests. Digital rectal examination showed a small prostate, adenomatous, without nodules. PSA was 1.01 ng/ml. The patient underwent transurethral resection of the prostate because of the persistence of urinary retention.
  
  
  RESULTS
  Pathologic study reported a hypercellular stroma, with a perivascularly distributed inflammatory infiltrate and myxoid stromal background with slightly atypical fusiform cells. Immunohistochemical studies showed positive staining of fusiform cells for vimentin and histiocytes in the lesion for CD68, and negative staining for cytokeratin. The final diagnosis was prostatic inflammatory pseudotumor.
  
  
  CONCLUSIONS
  In spite of being an unfrequent presentation it is important to take this benign lesion under consideration to avoid unnecessary aggressive radical complementary treatments.
authors.affiliation: Servicio de Urología, Hospital San Agustín, Avilés, España. jpguro@wanadoo.es
authors.forename: Francisco Javier
authors.initials: FJ
authors.lastname: Pérez García
authors.forename: Jesús
authors.initials: J
authors.lastname: Pinto Blázquez
authors.forename: Ricardo
authors.initials: R
authors.lastname: Gutiérrez García
authors.forename: José Manuel
authors.initials: JM
authors.lastname: Lanzas Prieto
authors.forename: José Luis
authors.initials: JL
authors.lastname: Guate Ortiz
authors.forename: Julio
authors.initials: J
authors.lastname: Velasco Alonso
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006104:Granuloma, Plasma Cell / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D011469:Prostatic Diseases / Q000473:pathology* / Q000601:surgery; D020728:Transurethral Resection of Prostate
vernacular_title: Pseudotumor inflamatorio de prostata (tumor fibromixoide pseudosarcomatoso).