Ureteral structure and ultrastructure. Part II. Congenital ureteropelvic junction obstruction and primary obstructive megaureter
MK Hanna, RD Jeffs, JM Sturgess, M Barkin - The Journal of urology, 1976 - Elsevier
The structure and ultrastructure were studied of 48 specimens from cases of congenital
ureteropelvic junction obstructions and primary obstructive megaureters. Under light
microscopy a spectrum of findings occurs, extending from the nearly normal to the clearly
abnormal obstructive segments. However, under electron microscopy there were consistent
abnormalities: 1) excessive collagen fibers between and around the muscle cells and 2) a
group of compromised muscle cells proximal to the collagenous segment. These findings …
ureteropelvic junction obstructions and primary obstructive megaureters. Under light
microscopy a spectrum of findings occurs, extending from the nearly normal to the clearly
abnormal obstructive segments. However, under electron microscopy there were consistent
abnormalities: 1) excessive collagen fibers between and around the muscle cells and 2) a
group of compromised muscle cells proximal to the collagenous segment. These findings …