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  • 1
    Electronic Resource
    Electronic Resource
    Hepatocellular carcinoma with sarcomatous change: characteristic findings of two-phased incremental CT (1996)
    Springer
    Abdominal imaging 21 (1996), S. 37-40 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver〈+〉—〈+〉Liver, neoplasms〈+〉—〈+〉Hepatocellular carcinoma〈+〉—〈+〉Sarcomatous change〈+〉—〈+〉Computed tomography.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Because of its poor prognosis, the diagnosis of hepatocellular carcinoma with sarcomatous change (HCCSC) is clinically important. The purpose of this study is to elucidate the characteristic CT findings of HCCSC. Methods: Two-phased dynamic incremental CT images of six histologically proven HCCSC were retrospectively reviewed. Results: All tumors (100%) exhibited peripheral enhancement on delayed CT images. Lymphadenopathy was observed in 100% (six of six patients); intrahepatic metastases, in 83% (five of six). Both metastatic lesions showed findings similar to those of the primary hepatic tumors, such as peripheral enhancement. Histopathologically, delayed and/or prolonged peripherally enhanced areas consisted of viable cancer cells with sarcomatous changes. Conclusions: The appearance of HCCSC on CT is that of an irregularly demarcated intrahepatic mass with delayed or prolonged peripheral enhancement, frequently with intrahepatic metastases and lymphadenopathy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900006
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Radiologically identifiable intratumoral portal vein in intrahepatic cholangiomas: a diagnostic pitfall (1996)
    Springer
    Abdominal imaging 21 (1996), S. 445-447 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver neoplasm—Cholangioma—Intratumoral portal vein—MR—CT.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Although intratumoral patent portal vein (ITPV) is one of the characteristic features of benign hepatic lesions, ITPVs can be demonstrated in malignant tumors. We present the spectrum of MR and CT findings of ITPV identified in intrahepatic cholangiomas with pathological correlations. Methods: The ultrasound, CT and/or MRI findings of pathologically-confirmed intrahepatic cholangiomas were reviewed and correlated with surgical specimen or autopsy findings. Results: Intratumoral patent vessels were radiographically-demonstrated in 5 patients with intrahepatic cholangiomas. All intratumoral vessels were secondary or tertiary order portal vein branches. Some wall thickening was identified on pathological examinations. Conclusion: The radiological demonstration of intratumoral portal vein is not a specific sign of benignity. In the case of a hepatic tumor with a patent portal tract, cholangioma should be considered, as well as benign tumors or lymphoma.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900100
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
  • 3
    Electronic Resource
    Electronic Resource
    Postoperative MRI evaluation of anorectal malformations with clinical correlation (1993)
    Springer
    Pediatric radiology 23 (1993), S. 583-586 
    Details
    ISSN: 1432-1998
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Sixteen postoperative patients with anorectal malformation were evaluated by MRI, and the results compared with the clinical assessment. Patients were classified into three groups — good (group 1,n=10), fair (group 2,n=3) and poor (group 3,n=3) — on the basis of Kelly's clinical score of incontinence. The degree of development of the puborectalis and external sphincter muscles and the levator hammock was evaluated on MRI in comparison with patients without anorectal disease. The proportions of fair or poor development of the muscles were 37% in group 1,22% in group 2 and 67% in group 3. Although fair or poor development of the muscles was seen more frequently in group 3, there was no statistically significant difference between groups. However, poorly developed muscles were seen only in patients with fair or poor clinical scores. The difference in the anorectal angle measured on sagittal MRI images between patients in group 1 and groups 2 or 3 was significant. Our study indicates that MRI evaluation based solely on muscle development can be misleading, and measurement of the anorectal angle should be included in the MRI evaluation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02014969
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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