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  • 1990-1994  (8)
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Material
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Year
  • 1
    Electronic Resource
    Electronic Resource
    Neonatal congenital megaureters: trends in diagnosis and management (1992)
    Springer
    World journal of urology 10 (1992), S. 90-93 
    Details
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This report describes the last 16 cases of congenital primary obstructive megaureter (CPOM) encountered at our institution, whereby antenatal diagnosis was an important method of detection (13 of 16 cases). In most cases, no precise diagnosis was established in utero (2 of 13 infants). This lack of accuracy is of little importance, since all babies with suspected uropathies undergo a uroradiological work-up after birth (ultrasound, voiding cystogram, and urogram). Our series showed a marked male predominance (80%). CPOM showed a high potential for spontaneous resolution after birth (40%). Therapeutic decisions should be based mainly on studies of renal function (quantitative isotopic nephrogram with diuretics). Therefore, as long as renal function has not deteriorated during follow-up, conservative management should be elected first. Only cases showing clinical symptoms or decreased renal function should be treated surgically.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00183141
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Hepatic cysts and hyperechogenicities: Perinatal assessment and unifying theory on their origin (1994)
    Springer
    Pediatric radiology 24 (1994), S. 569-572 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The authors report their experience with the perinatal diagnosis of six cases of hepatic cyst and six of liver hyperchogenicities. The in utero diagnosis of hepatic cysts was difficult when the cysts were large or subhepatic. A precise diagnosis was sometimes achieved only after surgery. Small intraparenchymal cysts tended to regress spontaneously. Liver hyperechogenicities were diffuse or localized. They were unrelated to liver infection, tumors, meconium peritonitis or biliary tract anomaly. Both entities could be related to vascular disruption phenomenon (VDP) in which structural anomalies result from damage to normal development of embryonic or fetal vessels with anomalies of perfusion to the developing organs. The consequences of VDP to the liver are variable depending on the time and duration of the phenomenon. Localized infarct or ischemia can fibrose or calcify leading to segmental hyperechogenicities. Necrosis with tissue reabsorption can be the origin of some (sub)hepatic cysts. When such anomalies are detected there should be a careful study of the placentation, and a search for potential associated anomalies should be undertaken.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012734
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Sonographic demonstration of congenital adrenal hyperplasia in the neonate: The cerebriform pattern (1993)
    Springer
    Pediatric radiology 23 (1993), S. 88-90 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Sonographic examination of the adrenal glands of three newborns with congenital adrenal hyperplasia demonstrated a cerebriform pattern. This is introduced as a sonographic feature specific to the disease. This finding in patients with ambiguous genitalia should suggest the diagnosis even if the adrenals are not significantly enlarged, and should prompt appropriate biochemical analysis and treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012391
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Hyperechoic thickened ependyma: Sonographic demonstration and significance in neonates (1994)
    Springer
    Pediatric radiology 24 (1994), S. 550-553 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract In the neonate, hyperechoic thickening of the ependyma is believed to be related to ventriculitis. Yet, in our experience, this sign is much more often observed in association with subacute intraventricular hemorrhage (IVH), without infection. Sixty premature neonates were prospectively studied. The observations of transfontanellar sonograms (intracranial hemorrhage, ependymal echogenicity, and ventriculomegaly) were correlated with the results of MRI, lumbar punctures and clinical work-up. Intracranial hemorrhage was detected in 28 patients, and hyperechoic thickening of the ependyma was observed in 21 of them, all of whom had IVH. In 9 of these 21 patients IVH was diagnosed retrospectively thanks to the visualization of the hyperechoic ependyma. In all but one, this sign persisted for at least 2 months after disappearance of other signs of IVH. MRI demonstrated the presence of hemosiderin and ferritin in ependymal or subependymal location only in patients with hyperechoic ependyma. One of our patients had in utero diagnosis of IVH owing to the visualization of the same hyperechoic aspect of the ependyma. Nine of the neonates with hyperechoic ependyma developed ventriculomegaly, and three underwent surgery. Hyperechoic thickening of the ependyma in prematures often results from a subacute IVH. It is related to hemoglobin catabolites which can be detected by MRI. It does not require immediate potentially harmful diagnostic punctures. The presence of this hyperechoic rim allows a retrospective diagnosis of IVH and indicates a clinical and sonographic follow-up in newborns at risk for secondary hydrocephalus.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012729
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    A hypothesis for the higher incidence of vesico-ureteral reflux and primary megaureters in male babies (1992)
    Springer
    Pediatric radiology 22 (1992), S. 1-4 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The authors propose a new explanation for the male preponderance in cases with prenatally diagnosed vesico-ureteral reflux and primary megaureters. The theory is based on conclusions drawn from the characteristics of 4 patients (3 perinatal cases and 1 occurring in a 14-year-old boy) presenting with unusual anomalies of the lower urinary tract. In this hypothesis, the male preponderance could be related to an abnormal dilatation of the posterior urethra occurring during the embryological development of the male urethra. The dilatation leads to a flap valve mechanism and to a functional obstruction of the bladder outlet and finally to secondary dilatation of the upper urinary tract. This obstruction may be transitory; reflux and megaureters found in utero or after birth could be considered as sequellae of this phenomenon.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02011598
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Pulmonary sequestration-like anomaly presenting as a spontaneously resolving mass (1991)
    Springer
    Pediatric radiology 21 (1991), S. 143-144 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract A premature baby boy presented at birth with respiratory distress. A right lower lobe opacity was found on chest X-ray. Pulmonary sequestration was the diagnosis suggested by ultrasound. The size of the mass decreased on subsequent examinations. 4 months later X-rays and sonography failed to demonstrate any remaining mass. This case illustrates another example of involutive pathology and suggests that not all pulmonary sequestration-like anomalies should be operated on.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02015633
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Pericholecystic hyperechogenicities in necrotizing enterocolitis: A specific sonographic sign (1991)
    Springer
    Pediatric radiology 21 (1991), S. 179-181 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The authors report a new sonographic pattern found in association with neonatal necrotizing enterocolitis in 5 newborns: hyperechogenicities around the gallbladder. The pattern probably corresponds to extension of the disease to the perivesicular space. The most probable hypothesis for that extension is diffusion by contiguity through the lesser sac and/or the right gutter. The hyperechogenicities could be related to the foamy infiltrate typical of NEC. Air within the pericholecystic vascular system similar to portal air could be another (less probable) explanation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02011041
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Hyaline membrane disease in the newborn: Diagnosis by ultrasound (1990)
    Springer
    Pediatric radiology 20 (1990), S. 143-146 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The authors report a new method of diagnosing hyaline membrane disease (HMD) in newborns: ultrasound. Babies with HMD display a specific pattern with retrohepatic hyperechogenicity on abdominal ultrasound. The specificity of the pattern was verified in 40 prematures with respiratory distress syndrome. The sign was present in 24, and in 22 of these the final diagnosis was moderate or marked HMD. In the last 2, mild HMD was suggested. The pattern was absent in the 16 others, none of whom had HMD. The pattern probably results from an ultrasound artifact: summation of multiple aerated airways surrounded by collapsed alveoli. Follow-up examinations were possible in 13 babies with HMD. Hyperechogenicity disappeared in 8 of these patients within 6–9 days and in 3 within 10–20 days; it persisted for 60 and 70 days in 2 with bronchopulmonary dysplasia. In conclusion, retrohepatic hyperechogenicity in newborns is pathognomonic for HMD and allows an instant diagnosis. The persistence of the pattern could be a useful criterion for evaluation of the prognosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012957
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    Paper (German National Licenses)
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