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  • 1
    Electronic Resource
    Electronic Resource
    Chronic expanding hematoma of the spleen caused by angiomyolipoma in a patient with tuberous sclerosis (1998)
    Springer
    Abdominal imaging 23 (1998), S. 527-530 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Spleen, CT—Spleen, hematomas—Spleen, rupture—Spleen, diseases—Tuberous sclerosis, CT.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. We report a case of a chronic expanding hematoma caused by an angiomyolipoma of the spleen in a patient diagnosed with tuberous sclerosis in infancy. Computed tomography showed large bilateral renal angiomyolipomas. A splenic mass that increased in size during the follow-up period of 62 months was also noted. A large subcapsular hematoma of the spleen finally developed, and a splenectomy was performed. The splenic mass consisted of a chronic hematoma with prominent granulation tissue, which was considered to be caused by repeated bleeding from a small angiomyolipoma in the spleen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900392
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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    Helical CT evaluation of arterial invasion in pancreatic tumors: comparison with angiography (1997)
    Springer
    Abdominal imaging 22 (1997), S. 204 -207 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Pancreas—Helical CT—Peripancreatic arteries—Pancreatic tumors.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: Although helical computed tomography (HCT) has been widely employed for the evaluation of pancreatic tumors, its capability in the diagnosis of peripancreatic arterial invasion has not been established. Methods: HCT with a sequential cine-display was carried out in 34 patients with solid pancreatic tumors and 28 control subjects without angiographic abnormality. The HCT scans were compared with angiograms. Results: All major arteries (celiac, superior mesenteric, splenic, gastroduodenal) and superoanterior pancreaticoduodenal arteries were well demonstrated by HCT in control subjects. However, posterior pancreaticoduodenal arcades and other smaller arteries were poorly identified. Although 19 major arterial invasions were equally diagnosed by HCT and angiography in patients with pancreatic tumors, only 4 of 11 minor arterial invasions were correctly diagnosed by HCT. Conclusions: Although HCT has some limitations in the evaluation of minor peripancreatic arteries, it can provide enough information for making a decision about conducting pancreatic surgery.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900173
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  • 4
    Electronic Resource
    Electronic Resource
    MR imaging of hepatocellular carcinomas: effect of Cu and Fe contents on signal intensity (1997)
    Springer
    Abdominal imaging 22 (1997), S. 60 -66 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, neoplasms—Liver, metal—Magnetic resonance imaging—Hepatocellular carcinoma—Liver, signal intensity. [xm [fs99]
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. Background: To elucidate the metallic factors contributing to the signal intensities of hepatocellular carcinoma (HCC) on T1-weighted magnetic resonance (MR) images and to determine whether or not changes in signal intensity contribute to the diagnosis of histological grading of HCC. Methods: In 35 patients immediately after surgery, the quantities of water, lipid, copper (Cu), iron (Fe), and manganese (Mn) were determined in HCCs and the surrounding hepatic parenchyma. The correlations among these findings, the histopathological findings, and the signal intensities of T1-weighted MR images were evaluated. Results: Among the 35 HCCs, 12 (34%) were of high intensity, 14 (40%) were isointense, and 9 (26%) were of low intensity on T1-weighted images versus the surrounding hepatic parenchyma. The paramagnetic ions, which contributed to the signal intensity patterns, were assumed to be Cu in HCCs (30.5 ± 52.9 μg/g ww), and Fe in the livers (106.2 ± 86.8 μg/g ww) and HCCs (87.7 ± 49.1 μg/g ww). In 12 HCCs with high intensity, one was grade I, eight were grade II, and three were grade III according to Edmondson-Steiner's histopathological classification. Conclusions: Signal intensity and signal intensity patterns alone cannot be signs of low-grade malignancy because of the Fe in livers and in HCCs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900141
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  • 5
    Electronic Resource
    Electronic Resource
    Primary malignant lymphoma in the porta hepatis: a case report (1996)
    Springer
    Abdominal imaging 21 (1996), S. 448-450 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Liver, neoplasm—Liver, lymphoma—Porta hepatis, lymphoma—MRI—CT.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract. A case of primary lymphoma in the porta hepatis is presented here. Cholangiography, angiography, ultrasonography and computed tomography suggested the presence of a mass in the porta hepatis, but all these failed to demonstrate the tumor clearly. Magnetic resonance imaging was very useful in defining the characteristics of the tumor and in delineating its extent, though it was not specifically diagnostic.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900101
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  • 6
    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
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  • 7
    Electronic Resource
    Electronic Resource
    Lung adenosquamous carcinoma with lingual and cardiac metastases (2000)
    Springer
    International journal of clinical oncology 5 (2000), S. 131-135 
    Details
    ISSN: 1437-7772
    Keywords: Key words Lung cancer ; Adenosquamous carcinoma ; Lingual metastasis ; Cardiac metastasis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Metastatic lingual tumors are very rare, and hematogenous myocardial metastasis is also relatively uncommon. We report a case of lung adenosquamous carcinoma with metastases to the tongue and the myocardium. A 65-year-old man underwent a partial upper lobectomy for a primary lung cancer in June 1997. He developed a local recurrence and received two courses of radiotherapy, in March and September 1998. A follow-up computed tomography (CT) scan showed a myocardial tumor, suggestive of cardiac metastasis. In October 1998, he began to complain of angina-like chest oppression and showed ischemic changes on electrocardiogram (ECG), and he also developed lingual, subcutaneous, and brain metastases. He died of respiratory failure in December 1998, 20 months after the initial diagnosis of primary lung cancer; metastases to the tongue and myocardium were confirmed by autopsy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s101470050104
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  • 8
    Electronic Resource
    Electronic Resource
    Aneurysms of the peripheral portion of the anterior inferior cerebellar artery; Report of two cases (1987)
    Springer
    Neuroradiology 29 (1987), S. 493-496 
    Details
    ISSN: 1432-1920
    Keywords: Anterior inferior celebellar artery ; Aneurysm
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Two cases of extremely rare aneurysms of peripheral portions of the AICA are reported with a review of the pertinent literature. According to reported surgical findings, nearly all of the aneurysms originated from arterial loops near the internal acoustic meatus. These aneurysms can therefore, cause the cerebellopontine angle syndrome, with or without subarachnoid hemorrhage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00341751
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  • 9
    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
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