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Background: The purpose of the present study was to describe the various imaging features of primary malignant fibrous histiocytoma (MFH) of the liver, a rare tumor of mesenchymal origin. Methods: Sonography (n= 5), computed tomography (CT; n= 5), magnetic resonance (MR) imaging (n= 2), and hepatic arteriography (n= 3) in five patients who underwent(More)
It has been observed that hepatocellular carcinomas (HCCs) can differ in signal intensity on T1and T2weighted images [1–3]. The problem of limited spatial resolution of magnetic resonance imaging (MRI) needs to be solved for assessment of small lesions with low lesionto-liver contrast. To overcome the limitation of static MRI of the liver, various contrast(More)
In this paper, we discuss the limiting factors for short-wavelength QCL designs and how the incorporation of strain into the material can help to overcome the electron confinement limitations of QCLs at shorter wavelengths. As QCL designs approach shorter wavelengths, several problems arise, including electron confinement, intervalley leakage, surface(More)
Primary hyperparathyroidism is a rare disease in children and is characterized by conspicuous skeletal and renal changes. A 12 year old male patient presented with symptoms of polydipsia, polyuria, general weakness, nausea, and vomiting which had begun 3 months earlier, and showed typical laboratory findings of primary hyperparathyroidism. Confirmatory(More)
In this study, we investigate the effects of endothelin-1 (ET-1) and insulin on the cellular activity of protein kinase F(A)/glycogen synthase kinase-3alpha (kinase F(A)/GSK-3alpha) in rat adipocytes. The cellular activity of kinase F(A)/GSK-3alpha is inhibited to approximately 50% of control within 30 min when cells are treated with 1 nM ET-1 at 37 degrees(More)
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