title: [Radiologically detectable modifications in the cartilaginous parts of the first pair of ribs in connection with age, sex and the cartilaginous part of the other ribs (author's transl)].
abstract: 2154 thorax radiograms of 1099 male and 1055 female patients with transformations of the costal cartilage were analysed and statistically evaluated in dependence on age. The calcification of the cartilage parts of the first rib was observed on both sides in the same way and concerning the frequency there were no sex conditioned differences. In the age group between 35 and 45 years more than 95% calcifications have been demonstrated. Men show more frequently advanced stages and types of calcification than women. In complete or heavy calcified cartilage zones disconnections in form of splitted parts without calcium have been observed. The lower cartilage skirt is regarded as the localization of the beginning of calcification. The other costal cartilages will be calcified later and less rapidly than the first costal cartilage. Significant differences of type and localization of the calcification were found between men and women. Physiological processes of ageing and mechanical stress as the prevailing calcification-causing factors are discussed.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000375:Aging; D002113:Calcification, Physiologic; D002356:Cartilage / Q000033:anatomy & histology*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D011859:Radiography; D012272:Ribs / Q000033:anatomy & histology* / Q000000981:diagnostic imaging
vernacular_title: Röntgenologisch darstellbare Veränderungen der knorpligen Anteile des ersten Rippenpaares unter Berücksichtigung von Alter, Geschlecht und den knorpligen Anteilen der übrigen Rippen.