Spatial Relationship Between the Metanephros and Adjacent Organs According to the Carnegie Stage of Development

摘要: The morphological changes in the metanephros and its spatial relationship to adjacent organs was evaluated based on Carnegie stages (CSs) from 14 through 23. imaging modalities used included magnetic resonance (N = 4), phase-contrast X-ray computed tomography 11), serial histological sections 40), supplemented by three-dimensional image reconstruction. orientation of hilus changed significantly between CS17 (34.4 ± 13.7 degrees) 18 (122.3 38.1 degrees), with an increase number branches urinary collecting system, 1.61 0.42 at 3.20 0.35 CS18. This influenced growth hilus. right left metanephroses were proximity throughout embryonic period. local maximum interpole distances observed CS18 (0.87 0.11 mm for upper 0.50 0.25 lower pole). Mesenchymal tissue iliac arteries, as well metanephros. Throughout development, position pole remained aortic bifurcation. pole, referenced respect bifurcation, increased >2.0 mm, reflecting longitudinal Our findings provide a detailed description morphogenesis hilus, which might contribute our understanding congenital malformations malpositions kidneys. Anat Rec, 302:1901-1915, 2019. © 2019 American Association Anatomy.