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  • 1
    Electronic Resource
    Electronic Resource
    Undifferentiated embryonal sarcoma of the liver treated with chemotherapy: CT imaging in four patients (1995)
    Springer
    Abdominal imaging 20 (1995), S. 133-137 
    Details
    ISSN: 1432-0509
    Keywords: Liver, neoplasms ; Liver, sarcoma ; Liver, CT
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: The purpose of this study was to describe the computed tomography (CT) findings of undifferentiated embryonal sarcoma after chemotherapy and to correlate the CT imaging findings with pathologic findings. Methods: Ten CT images obtained before and after chemotherapy in four patients with hepatic undifferentiated embryonal sarcoma were retrospectively reviewed and correlated with pathologic findings. Results: After chemotherapy, tumor volume decreased by 50–90% and initially nonresectable tumor or gross residual tumor was successfully excised in three patients. In all patients, enhancing peripheral solid portions and septations changed to low-attenuation areas, and in three patients increased or de novo calcifications were found at the periphery of the tumor. Resected pathologic specimen after chemotherapy showed well-encapsulated masses with central necrosis, fibrosis, and dystrophic calcifications. Conclusions: These CT findings will be useful in monitoring the treatment response of hepatic undifferentiated embryonal sarcoma during chemotherapy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00201521
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  • 2
    Electronic Resource
    Electronic Resource
    Pediatric intractable epilepsy: the role of presurgical evaluation and seizure outcome (2000)
    Springer
    Child's nervous system 16 (2000), S. 278-285 
    Details
    ISSN: 1433-0350
    Keywords: Keywords Intractable epilepsy ; Epilepsy surgery ; Outcome ; Children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Surgical experience with long-term follow-up is limited in childhood intractable epilepsy, compared with adult epilepsy. To assess the role of each presurgical evaluation modality and to identify prognostic factors for favorable seizure control after epilepsy surgery, 38 children with intractable epilepsy who underwent surgery were retrospectively reviewed. Among the available preoperative evaluation modalities, PET and neuropsychological testing showed the highest rates of positive results, whereas MRI was the most concordant with EEG findings. During a follow-up period of at least 12 months, 26 of the 38 patients showed favorable seizure control (Engel classifications I and II). The best seizure control was achieved in patients with a temporal resection and discrete lesion on magnetic resonance imaging. In spite of the invasive study, the less satisfactory results followed an extratemporal resection. We conclude that epilepsy surgery benefits children with intractable epilepsy and that the role of invasive study should be re-established according to the area of resection and presence of discrete lesion on MRI.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003810050514
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  • 3
    Electronic Resource
    Electronic Resource
    Complicated pleural tuberculosis in children: CT evaluation (1999)
    Springer
    Pediatric radiology 29 (1999), S. 153-157 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Purpose. To describe the CT features of complicated pleural tuberculosis in children and to define the use of CT in children with pleural tuberculosis. Materials and methods. The CT findings in 11 children with complicated pleural tuberculosis were retrospectively analysed. CT was performed to evaluate persistent pleural thickening (n = 6) or a mass-like lesion (n = 5) detected on plain radiographs. Chest radiographs and medical records were reviewed to determine whether additional information provided by CT had altered clinical management. Results. On CT, more than one location was involved in five patients (45 %) and in two patients (18 %) the entire pleural spaces were involved. Pleural thickening was seen in all 11 patients and enhancement after administration of contrast medium occurred in ten patients (91 %). Low-density fluid collections were seen in nine patients (82 %) and in two, CT revealed fluid collections within calcified pleural lesions. In five patients with mass-like lesions on plain radiographs, CT showed a low-density pleural mass with peripheral enhancement in four and a calcified pleural mass with fluid collection in one. CT demonstrated parenchymal abnormalities on the same side as pleural lesions in all 11 patients and hilar or mediastinal adenopathy in four. Four patients (36 %) underwent surgery because of fluid within a calcified fibrothorax (n = 3) and chest wall tuberculosis (n = 1) that were seen only on CT. Conclusions. The CT features of complicated pleural tuberculosis in children were pleural thickening, enhancement and fluid collection with associated parenchymal abnormalities and lymphadenopathy. In the evaluation of children with pleural tuberculosis, CT can be useful for demonstrating fluid within a calcified fibrothorax or chest wall involvement, which usually requires surgical intervention.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002470050561
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  • 4
    Electronic Resource
    Electronic Resource
    Congenital intrahepatic portohepatic venous shunt: treatment with coil embolisation (2000)
    Springer
    Pediatric radiology 30 (2000), S. 336-338 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Congenital abnormalities of the portal venous system are rare. There are few radiological descriptions of intrahepatic portosystemic venous shunt detected in the perinatal period. We report a congenital portosystemic shunt that was detected by US and treated with coil embolisation in the neonatal period.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002470050753
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  • 5
    Electronic Resource
    Electronic Resource
    MRI of primary meningeal tumours in children (1999)
    Springer
    Neuroradiology 41 (1999), S. 512-516 
    Details
    ISSN: 1432-1920
    Keywords: Key words Meninges ; Tumours ; Children
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Childhood meningeal tumours are uncommon and mostly meningiomas. We reviewed the histological and radiological findings in meningeal tumours in six children aged 12 years or less (four benign meningiomas, one malignant meningioma and one haemangiopericytoma). Compared to the adult counterpart, childhood meningiomas showed atypical features: cysts, haemorrhage, aggressiveness and unusual location. MRI features varied according to the site of the tumour, histology, haemorrhage, and presence of intra- or peritumoral cysts. Diagnosis of the extra-axial tumour was relatively easy in two patients with meningiomas, one malignant meningioma and one haemangiopericytoma. MRI findings strongly suggested an intra-axial tumour in two patients with benign meningiomas, because of severe adjacent edema. Awareness of the variable findings of childhood meningiomas and similar tumours may help in differentiation from brain tumours.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002340050794
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  • 6
    Electronic Resource
    Electronic Resource
    Carpal and tarsal osteolysis: An MRI, angiographic and histopathologic study (1993)
    Springer
    Pediatric radiology 23 (1993), S. 553-555 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract The case of a 13-year-old girl with striking carpal and tarsal osteolysis (sporadic occurrence) is reported. MRI confirmed the total absence of carpal bones and medial tarsal bones. Dense fibrocollagenous tissue replaced the spaces left by the resorbed bones. Arteriography showed occlusion of the radial artery at the level of the physis of the distal radius with increased tortuosity of the ulnar artery. There was no major vascular occlusion in the foot except for some indistinct and blurred tarsal branches of the anterior tibial artery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012149
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  • 7
    Electronic Resource
    Electronic Resource
    Pulmonary paragonimiasis simulating lung abscess in a 9-year-old: CT findings (1993)
    Springer
    Pediatric radiology 23 (1993), S. 626-627 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present the CT findings of pulmonary paragonimiasis in a 9-year-old girl. It appeared as a large cystic mass with an air-fluid level and simulated a lung abscess. Communication with a segmental bronchus was demonstrated well on a CT scan obtained after aspiration.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02014987
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  • 8
    Electronic Resource
    Electronic Resource
    Castleman disease in the child: CT and ultrasound findings (1994)
    Springer
    Pediatric radiology 24 (1994), S. 182-184 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Castleman disease is a relatively rare disorder affecting young adults. We present the CT and ultrasonographic findings of Castleman disease in two children. In one patient with hyaline-vascular type disease, CT showed a well-enhancing mass in the right paratracheal area. In a second patient with plasma cell type disease, there was a solid, homogeneous mass in the retroperitoneal space which was poorly enhancing. Ultrasound showed a uniform hypoechogenic mass in both cases.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02012186
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  • 9
    Electronic Resource
    Electronic Resource
    Radiological features of focal nodular hyperplasia of the liver in children (1998)
    Springer
    Pediatric radiology 28 (1998), S. 878-883 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background. Focal nodular hyperplasia (FNH) is an unusual hepatic tumour in children and should be distinguished from other hepatic lesions. Objective. To describe the imaging characteristics of FNH in children. Materials and methods. We examined five patients (three boys and two girls, mean age 9.4 years) with pathologically confirmed FNH. The diagnosis was obtained by tumour resection (n = 4) and percutaneous needle biopsy (n = 1). One patient with multiple FNHs showed recurrent lesions after tumour resection. All patients were studied with US (including colour and power Doppler US [n = 3]) and CT. Dynamic enhanced CT scans were available in three patients. MRI (n = 2) or coeliac angiography (n = 1) was performed in three patients. Results. Seven of eight FNH lesions in five patients were demonstrated by imaging. The average size of the lesions was 6.5 cm. Six lesions detected on US showed variable echogenicity with a central hyperechoic scar (n = 2). On Doppler examination, central or peripheral hypervascular areas were seen (n = 3). Six lesions detected on contrast-enhanced CT showed high attenuation (n = 4) or iso-attenuation (n = 2). On early phase scans, all the lesions (n = 3) showed high attenuation. Irregular linear or ovoid central scars were detected in two patients on CT. MR demonstrated three lesions in two patients, one of which had not been detected by US or CT. A central low signal intensity scar (n = 1) was seen on T2-weighted MRI. Coeliac angiography performed in one patient showed a hypervascular mass with homogeneous staining. Conclusion. FNH in children shows a wide spectrum of imaging findings on various radiological examinations and the typical central scar was not always seen on imaging studies. Dynamic enhanced CT obtained in the early phase and colour Doppler studies may be helpful in the diagnosis of FNH by allowing characterisation of tumour vascularity. FNH should be included in the differential diagnosis of liver mass in children.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002470050487
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  • 10
    Electronic Resource
    Electronic Resource
    Diffuse intestinal arteriovenous malformation in a child (1991)
    Springer
    Pediatric radiology 21 (1991), S. 314-315 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Mesenteric arteriovenous fitulas or arteriovenous malformations of the intestine are relatively rare, especially in the form of diffuse disease. We describe a case of diffuse intestinal arteriovenous malformation associated with congestive heart failure and cutaneous hemangioma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02018638
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