Pediatric radiology
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Neuroblastoma is a common tumor of childhood, usually occurring in children under 4 years of age [1]. We report a case of a 10-year old child who initially presented with a large calvarial mass representing a solitary site of metastasis from an occult adrenal neuroblastoma. The sunburst pattern of the calvarial metastasis noted in this case is rarely seen with neuroblastoma. The age of our patient, solitary focus of metastasis at presentation, and imaging appearance of the tumor are very uncommon findings of neuroblastoma.
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Pediatric radiology · Jan 1996
Comparative StudyLumbar spinal cord motion measurement with phase-contrast MR imaging in normal children and in children with spinal lipomas.
We assessed the normal movement of the lumbar spinal cord using phase-contrast MR imaging, and also the movement of the spinal cord in patients with spinal lipoma pre- and postoperatively. Phase-contrast MR imaging proved to be a valuable tool in this context.
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Pediatric radiology · Jan 1996
Multipolypoid intussusceptum: a distinctive appearance of ileoileocolic intussusception at the ileocecal valve.
Objective. To determine whether ileoileocolic intussusception can be diagnosed by a distinctive appearance during pneumatic reduction. Materials and methods. ⋯ In contrast to the ileoileocolic intussusceptums, these intussusceptums were either smoothly marginated (16 patients) or slightly lobular (three patients). Conclusion. In most patients with ileoileocolic intussusception, the intussusceptum has two or more polypoid components at the level of the ileocecal valve which are easily distinguished from the smoothly marginated or slightly lobular intussusceptum seen with ileocolic intussusception.
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Pediatric radiology · Nov 1995
Case ReportsIleocolic intussusception presenting with bilious vomiting due to extrinsic duodenal obstruction.
We present a case of a child presenting with bilious vomiting due to extrinsic duodenal obstruction by an ileocolic intussusception. The clinical presentation, radiographic findings, and use of sonography are discussed.
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Pediatric radiology · Nov 1995
Case Reports Meta AnalysisLymphatic air embolism: a new hypothesis regarding the pathogenesis of neonatal systemic air embolism.
Objective. Neonatal systemic air embolism (NSAE) has been thought to result from introduction of air into the pulmonary veins through hypothesized alveolar-capillary fistula. The objective of this paper is to reassess the distribution of intravascular air visualized radiographically in this entity. ⋯ PIE was found to be a very common associated finding in NSAE. Based on our current knowledge of pulmonary lymphatics, radiographic anatomy, and the lymphatic location of PIE, we propose that air within the pulmonary lymphatic system (PIE) gains access to the systemic venous system via lymphatic ducts, which results in the clinical entity NSAE. This readily explains the venous predominance of air in NSAE.