title: Hydroxyapatite crystals in tumoral calcinosis: a case report.
abstract: Calcified deposits of tumoral calcinosis from a 77-year-old Japanese woman were examined by scanning electron microscopy (SEM) and x-ray diffraction method. SEM revealed conglomerates of granular calcified materials 0.2 to 0.5 micron in size. X-ray diffraction method revealed the presence of hydroxyapatite that was highly crystallized. No other components such as calcium pyrophosphate dehydrate were detected.
authors.affiliation: Department of Orthopaedic Surgery, Tohoku University School of Medicine, Sendai, Japan.
authors.forename: M
authors.initials: M
authors.lastname: Hatori
authors.forename: K
authors.initials: K
authors.lastname: Oomamiuda
authors.forename: S
authors.initials: S
authors.lastname: Kokubun
mesh_terms: D000368:Aged; D002114:Calcinosis / Q000175:diagnosis* / Q000473:pathology* / Q000601:surgery; D017886:Durapatite / Q000737:chemistry*; D005260:Female; D006801:Humans; D007085:Ilium / Q000473:pathology / Q000601:surgery; D008855:Microscopy, Electron, Scanning; D014961:X-Ray Diffraction
chemical_list: D017886:Durapatite