title: [Revisiting the chemical diversity in prostatic calculi: a SEM and FT-IR investigation].
abstract: OBJECTIVE
  Revisiting the chemical diversity of the crystalline phases of prostatic calculi by means of SEM and FT-IR analysis.
  
  
  METHODS
  A set of 32 prostatic calculi has been studied by FT-IR and SEM.
  
  
  RESULTS
  FT-IR analysis has determined the chemical composition of each prostatic calculus and the SEM observation has described the morphology of the calculi surfaces and layers. Infrared analysis revealed that 90.7% of the stones were mainly composed of calcium phosphates. However, several mineral phases previously not reported in prostatic calculi were observed, as brushite or octocalcium phosphate pentahydrate.
  
  
  CONCLUSIONS
  Prostatic calculi exhibited a diversity of crystalline composition and morphology. As previously reported for urinary calculi, relationships between composition and morphology of prostatic stones and étiopathogenic conditions could be of interest in clinical practice.
authors: Laboratoire de physique des solides, université Paris Sud, Orsay, France.
authors: A
authors: A
authors: Dessombz
authors: P
authors: P
authors: Méria
authors: D
authors: D
authors: Bazin
authors: E
authors: E
authors: Foy
authors: S
authors: S
authors: Rouzière
authors: R
authors: R
authors: Weil
authors: M
authors: M
authors: Daudon
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002130:Calcium Phosphates / Q000032:analysis*; D002137:Calculi / Q000737:chemistry* / Q000648:ultrastructure; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008855:Microscopy, Electron, Scanning / Q000379:methods; D008875:Middle Aged; D011468:Prostatectomy; D011469:Prostatic Diseases / Q000150:complications / Q000473:pathology* / Q000601:surgery; D017550:Spectroscopy, Fourier Transform Infrared / Q000379:methods
chemical_list: D002130:Calcium Phosphates; C020243:calcium phosphate; C494366:calcium phosphate, dibasic, dihydrate