title: [Ultrastructure of primary or endogenous prostatic calculi. Scanning electron microscopic study].
abstract: We make an analysis by means of a Scanning Electromicroscope, of the ultrastructure of 15 Primary Prostate stones. The components identified were: Carboapatite in 14 stones, Hydorxyapatite in 3, Whitlockite in 4 and Wedellite in 2 stones. The ultrastructural findings have enabled us to classify them as follows: 1. Hydroxyapatite stones, which we call "Crystalline", the rarest, due to the predominance of the inorganic component. 2. Carboapatite stones, which possess a great deal of organic material and which we subdivide into "Amylaceous" for those which possess some ovoid formations which appear to us to correspond to amylaceous bodies and "non-amylaceous" for those without them.
mesh_terms: D001031:Apatites / Q000032:analysis; D002129:Calcium Oxalate / Q000032:analysis; D002130:Calcium Phosphates / Q000032:analysis; D002137:Calculi / Q000378:metabolism; D006801:Humans; D006882:Hydroxyapatites / Q000032:analysis; D008297:Male; D008855:Microscopy, Electron, Scanning; D011469:Prostatic Diseases / Q000378:metabolism*
chemical_list: D001031:Apatites; D002130:Calcium Phosphates; D006882:Hydroxyapatites; C021767:whitlockite; D002129:Calcium Oxalate; C030782:carboapatite; C016188:weddellite
vernacular_title: Ultraestructura de los cálculos prostáticos primarios o endógenos. Estudio al microscopio electrónico de barrido o "scanning".