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  • 11
    Electronic Resource
    Electronic Resource
    Portal tumor thrombus due to gastrointestinal cancer (1999)
    Springer
    Abdominal imaging 24 (1999), S. 585-590 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Doppler—Tumor—Stomach—Colon—Portal vein.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Methods: We studied the clinical data of seven patients with portal tumor thrombus (PTT) due to gastrointestinal (GI) cancer to determine the radiologic patterns and clinical implications of this rare complication. Results: (a) PTT was located along the entire splenic vein in three cases, at the splenomesenteric confluence in one case, and in the superior mesenteric vein in one case. Intrahepatic PTT occurred in two of four cases with liver metastasis. (b) One cirrhotic case was complicated by the occurrence of colon cancer associated with PTT in the splenic vein; the esophageal varices became rapidly enlarged and poorly controlled, and the patient died due to repeated variceal rupture. (c) In all patients, abdominal sonography (US) detected PTT and color Doppler sonography confirmed the US findings. Conclusions: The splenic vein should be meticulously observed by color Doppler sonography to check for PTT in patients with GI cancer to improve patient care.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900569
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  • 12
    Electronic Resource
    Electronic Resource
    Gallbladder carcinoma: color Doppler sonography (2000)
    Springer
    Abdominal imaging 25 (2000), S. 194-197 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Gallbladder—Carcinoma—Adenomyomatosis—Doppler—Cystic artery.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract This study, based on color Doppler and pulsed Doppler sonographic results of 13 cases with gallbladder carcinoma, eight cases of adenomyomatosis, and eight cases of tumefactive biliary sludge, shows that the presence or absence of blood flow signals helps in the differentiation between gallbladder carcinoma and tumefactive biliary sludge (84.6% sensitivity and 80.0% specificity). However, color Doppler sonography is still not fully capable of distinguishing all gallbladder carcinoma, and a further increase in Doppler sensitivity is mandatory for this purpose. Visualization of high-velocity blood flow within the lesion made gallbladder carcinoma more likely than benign tumor. In contrast, there was no difference in the resistive index between gallbladder carcinoma, adenomyomatosis, and normal subject groups, and the significance of the resistive index is a subject of future study.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619910044
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  • 13
    Electronic Resource
    Electronic Resource
    Adenosquamous carcinoma of the pancreas: report of two cases (2000)
    Springer
    Abdominal imaging 25 (2000), S. 420-423 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Doppler—Pancreas—Neoplasm (adenosquamous carcinoma)—Portal vein.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Adenosquamous carcinoma (ASqC) of the pancreas is a rare tumor. We analyzed the radiologic findings and clinical manifestations in two such cases. In both cases (a 51-year-old woman and a 67-year-old man), the portal system was selectively and largely invaded, the superior mesenteric vein in one and the splenic vein in the other, without arterial invasion. Thus, peripancreatic vessels should be carefully observed in patients with ASqC of the pancreas. One case showed an unusual mode of spread. Only a huge metastatic lesion was initially detected, leading to the misdiagnosis of primary malignant mesenteric tumor. Such an unusual growth pattern is also worth noting.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002610000059
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  • 14
    Electronic Resource
    Electronic Resource
    Subperineurial space of the sural nerve in various peripheral nerve diseases (1979)
    Springer
    Acta neuropathologica 46 (1979), S. 227-230 
    Details
    ISSN: 1432-0533
    Keywords: Subperineurial space ; Peripheral neuropathy ; Sural nerve
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The size of the subperineurial space of the sural nerve has been evaluated quantitatively in 69 cases of various peripheral nerve diseases and in controls. A significant increase was found in beriberi neuropathy (6 cases) and idiopathic polyradiculoneuropathy (9 cases) as compared with the control (8 cases). On electron microscopy a few macrophages, fibroblast processes, collagen fibrils with a diameter of 50 nm, microfibrils with a diameter of 8 nm, and amorphous material were observed in both the enlarged subperineurial space and the endoneurial intercellular space. They were less frequently observed in controls. No significant correlation was found between the size of subperineurial space and the density of myelinated fibers.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00690849
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  • 15
    Electronic Resource
    Electronic Resource
    Multinodular fatty change in the liver in patients with chronic hepatic porphyria (1999)
    Springer
    Abdominal imaging 24 (1999), S. 481-483 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Liver—Fatty infiltration—Porphyrin.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present five cases of chronic hepatic porphyria (CHP) without skin lesions, in whom a multinodular fatty change in the liver was incidentally detected by ultrasound. Discovery prompted further examinations, leading to the diagnosis of CHP. Although relatively rare, the possibility of CHP must be considered when encountering patients with irregular (multinodular) fatty infiltration of the liver of unknown cause. We also discuss the differential diagnosis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619900544
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  • 16
    Electronic Resource
    Electronic Resource
    Mesenteric panniculitis: sonographic findings (2000)
    Springer
    Abdominal imaging 25 (2000), S. 142-145 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Doppler—Mesentery—Panniculitis.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Mesenteric panniculitis (MP) is a relatively rare disease, and sonographic (US) and color Doppler findings have been infrequently reported. Methods: We reviewed the clinical data and US and Doppler results of three cases of MP to determine the role and limitations of these techniques. Results: The sole presenting clinical sign was a soft mass. On US the lesion was imaged as a poorly margined echogenic mass with hypoechoic areas. Color Doppler US visualized the nondeviated mesenteric vessels within the mass, which enabled us to perform a safe guided biopsy. Conclusions: US is useful as an initial diagnostic tool, but its results must be interpreted carefully. Color Doppler US is very useful in demonstrating fine vessels and helps in performing a safe needle biopsy.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s002619902004
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  • 17
    Electronic Resource
    Electronic Resource
    Abdominal involvement in neurofibromatosis 1: sonographic findings (2000)
    Springer
    Abdominal imaging 25 (2000), S. 517-522 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Doppler—Abdomen—Retroperitoneum—Neurofibroma—Pheochromocytoma— Mesentery.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Neurofibromatosis 1 (NF1) has been studied from many viewpoints, but its abdominal involvement has rarely been reported. Sonography (US) is now the initial diagnostic tool for abdominal exploration, which prompted us to determine the clinical manifestations and US findings of abdominal involvement in NF1. Methods: We analyzed the US findings and clinical data of eight NF1 cases with abdominal involvement. Results: Abdominal involvement included neurofibromatous tumor growth in the liver, mesentery, and retroperitoneum, in addition to mesenteric leiomyomatosis and gastric carcinoma. Color Doppler US was useful not only in detecting blood flows in the lesions but also in preventing hazardous vascular injury during tumor biopsy. Conclusion: A better understanding of the clinical manifestations and US findings of abdominal involvement in NF1 translates into improved NF1 patient care.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002610000084
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  • 18
    Electronic Resource
    Electronic Resource
    Liver tumors in children and young patients: sonographic and color Doppler findings (2000)
    Springer
    Abdominal imaging 25 (2000), S. 596-601 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Doppler—Liver—Neoplasm —Children.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Liver tumors are a relatively rare pathologic condition in children and young patients. The aim of the present study was to categorize the sonographic (US) and color Doppler results of liver tumors in these patients. Methods: We retrospectively reviewed the US findings of 23 such cases: malignant tumor (13 cases)—hepatoblastoma (four cases), hepatocellular carcinoma (HCC; four cases), and hepatic metastasis (five cases); benign tumor (10 cases)—hepatocellular adenoma (four cases), focal nodular hyperplasia (two cases), mesenchymal hamartoma (two cases), cystadenoma (one case), and hemangioendothelioma (one case). Results: There was no specific US findings for each tumor type. HCC usually developed on a normal liver and was imaged as multiple nodules. Color Doppler US helped in differentiating multiple metastatic nodules (hypovascular) from multiple HCC nodules (hypervascular). Presence of intratumoral cystic areas was usually suggestive of benign tumors. Follow-up US was useful for detecting small nodules in high-risk groups (congenital biliary atresia, glycogen storage disease). Color Doppler US helped in diagnosing portal thrombus or intratumoral shunt. Conclusion: Although there were no highly specific findings, US and color Doppler results contributed, to a certain degree, to the diagnosis of liver tumors in children and young adults by showing intratumoral cystic areas or vascularity. RID="" ID="" 〈E5〉Correspondence to:〈/E5〉 M. Sato
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002610000070
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  • 19
    Electronic Resource
    Electronic Resource
    Macronodular hepatic deformity on normal liver (2000)
    Springer
    Abdominal imaging 25 (2000), S. 592-595 
    Details
    ISSN: 1432-0509
    Keywords: Key words: Ultrasound—Anatomy—Liver—Necrosis— Deformity.
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background and methods: Macronodular hepatic deformity on normal liver is very rare. We present nine such cases and try to define the characteristic clinical and ultrasound (US) findings. Results: In the left lobe, the lateral segment was replaced by multiple nodules and the medial segment was very atrophied and irregularly shaped. Compared with the left lobe, the right lobe showed very few abnormalities except for segment 6, which showed a macronodular deformity. These nodules, regardless of diameter or lobe, showed a relatively homogeneous internal structure and were isoechoic relative to the surrounding hepatic parenchyma. These multinodular changes on US corresponded to multiple regenerative nodules identified at laparoscopic evaluation. On color Doppler US and angiography, the major intrahepatic vessels were patent in all cases. Conclusion: Although relatively rare, the macronodular hepatic deformity on normal liver collected in our series showed a characteristic appearance by US. A good understanding of its characteristics may help sonographers in differentiating it from other, more common hepatic deformities. RID="" ID="" 〈E5〉Correspondence to:〈/E5〉 K. Konno
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/s002610000101
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  • 20
    Electronic Resource
    Electronic Resource
    Immuno-electron microscopic localization of fibronectin on rat mast cells (1982)
    Springer
    Cellular and molecular life sciences 38 (1982), S. 495-496 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Rabbit anti-rat plasma fibronectin (pFN) causes histamine release from rat mast cells in the presence of complement. Fibronectin (FN) on rat mast cells, as shown by immuno-electron microscopy, is principally localized on cell folds, so they may play a role of attachment in the matrix of connective tissue.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01952657
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