[Pathological and X-ray study on bony specimens of rickets from 124 fetal and infantile autopsies].
The results of pathological and X-ray study on rickets of bony specimens from fetal and infantile autopsies are reported. Three important links were stressed in designing the study. The cases were divided into two groups: "congenital" and "postnatal". Each case has pathological slides and X-ray photographs of the rib, ulna and radius. GMA sections were used in this study to avoid decalcification and constriction of the bony specimens. The results showed that: Congenital rickets is existent in Beijing. Its incidence is 25.4%. The bony change was seen as early as 30 weeks of pregnancy. The pathological and X-ray features are not different between the "congenital" and "postnatal" groups; The incidence of fetal and infantile rickets is 35.5%. It is the highest in the rib, moderate in the ulna and lowest in the radius. The correlation of X-ray and pathological rickets was found to be 82.5% (rib), 77.3% (ulna) and 50% (radius). It can be seen that X-ray examination of the rib may raise the diagnostic rate to 12 times of that based on traditional wrist examination.
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D005333:Fetus; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D011859:Radiography; D012272:Ribs / Q000000981:diagnostic imaging / Q000473:pathology; D012279:Rickets / Q000151:congenital / Q000000981:diagnostic imaging / Q000473:pathology*; D014457:Ulna / Q000000981:diagnostic imaging / Q000473:pathology