title: [Groenblad-Strandberg syndrome. Study with scanning microscopy provided with an X rays analyzer].
abstract: A skin biopsy a 37 year old man with typical lesion of pseudoxanthoma elasticum associated with angioid striae (Groenblad-Strandberg syndrome) was examined with a scanning EM (SSM-2A) and a scanning EM provided with a X ray microanalyser. With the scanning EM (SSM-SA) it was possible to see tabular crystalline deposits with subround faces and rhombohedric tendency. The scanning EM provided with a X ray microanaliser enabled us to see crystalline deposits which in some fields adopt a star-shaped form corresponding to calcium crystals of not very well defined habit. The X ray microanalyser shows us the correspondence between the star shaped figures and a calcium salt. The potassium, sodium and magnesium analysis of the specimen permits us to verify that the pseudoxanthoma elasticum dermis is rich in K and poor in Mg.
mesh_terms: D000328:Adult; D001706:Biopsy; D002118:Calcium / Q000032:analysis; D006801:Humans; D008274:Magnesium / Q000032:analysis; D008297:Male; D008855:Microscopy, Electron, Scanning / Q000379:methods; D011188:Potassium / Q000032:analysis; D011561:Pseudoxanthoma Elasticum / Q000175:diagnosis* / Q000473:pathology
chemical_list: D008274:Magnesium; D011188:Potassium; D002118:Calcium
vernacular_title: Sindrome de Groenblad-Strandberg. Estudio al microscopio de "scanning" provisto de analizador de rayos X.