AJR. American journal of roentgenology
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AJR Am J Roentgenol · May 1995
Autosomal recessive polycystic kidney disease: long-term sonographic findings in patients surviving the neonatal period.
We studied the sonographic findings and the changes in renal function seen on long-term follow-up of children who had the initial diagnosis of autosomal recessive polycystic kidney disease made in the neonatal period. ⋯ In patients with autosomal recessive polycystic kidney disease who survive the neonatal period, kidney size as seen on sonograms does not continue to increase despite the patients' linear growth and maintained normal renal function. Rather, a decrease in kidney size and change in echogenicity occurs, producing a pattern that is similar to that seen on sonograms of patients with autosomal dominant polycystic kidney disease but without the marked increase in kidney size that occurs in that entity. This changing cystic pattern on follow-up sonograms may be the reason that previous descriptions of the sonographic findings in cases of autosomal recessive polycystic kidney disease have varied and why a decrease in size may not herald deteriorating renal function.
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AJR Am J Roentgenol · May 1995
CT diagnosis and localization of rupture of the bladder in children with blunt abdominal trauma: significance of contrast material extravasation in the pelvis.
The purpose of this study was to determine the utility of CT performed with maximal bladder distension in showing extravasation of IV contrast material as a means of detecting and localizing bladder rupture in children after blunt trauma. ⋯ The use of a scanning delay at CT prior to imaging the pelvis showed extravasation of IV contrast material in all seven children with bladder rupture. Intraperitoneal and extraperitoneal bladder rupture could be differentiated on the basis of the distribution of extravasated contrast material seen on CT scans.
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AJR Am J Roentgenol · May 1995
Diagnosis of appendiceal abscess in children with acute appendicitis: value of color Doppler sonography.
We performed color Doppler imaging of the right lower quadrant in children with acute appendicitis to characterize the imaging findings indicative of appendiceal perforation and to determine the value of this technique in diagnosing appendiceal abscesses. ⋯ Our results indicate that the best color Doppler sonographic predictors of appendiceal perforation are a hyperemic periappendiceal or pelvic fluid collection and periappendiceal soft-tissue hyperemia. A hyperemic, loculated fluid collection appears specific for the diagnosis of abscess.