Introduction: Different imaging modalities are used to evaluate salivary gland diseases, including tumors. Ultrasonography (US) is the preferred method on account of its ease of use, affordability, safety profile, and good tolerance among patients. The aim of this study was to evaluate the role of US in differentiating malignant from benign parotid tumors, in the context of previous controversy...

BACKGROUND/PURPOSE In infants, neuroblastoma has been known to spontaneously differentiate into a benign ganglioneuroma. Although several investigators have compared mass-screened with unscreened, disseminated with localized, and adrenal with retroperitoneal neuroblastoma, there are very few cross-comparisons of the above parameters. Herein, the authors report the maturation of mass-screened, l...

Photoactivation allows one to pulse-label molecules and obtain quantitative data about their behavior. We have devised a new modeling-based analysis for photoactivatable actin experiments that simultaneously measures properties of monomeric and filamentous actin in a three dimensional cellular environment. We use this method to determine differences in the dynamic behavior of beta and gamma act...

Myocarditis can resemble an acute coronary syndrome (ACS), even an ST-segment elevation myocardial infarction. Furthermore, when a coronary angiogram reveals no significant disease, differential diagnosis can be challenging. Endomyocardial biopsy is still the gold standard for the diagnosis of myocarditis; however, its invasive character and limited sensitivity restrict its generalized applicat...

We present the case of a patient with pulmonary cavitation of extremely unusual aetiology, which presented a significant diagnostic challenge despite multidisciplinary involvement. A 54-year-old male presented with a 6-week history of haemoptysis associated with fatigue, night sweats and dyspnoea. His past medical history was significant for coronary artery stenting (treated with aspirin). Ther...

Security is not considered a priority by developers of shrink-wrap systems because without a means to accurately and understandably measure it, security fails to provide a competitive advantage. I assert that the cost to break into a system is an effective metric, that this metric can be measured from the start of testing until product retirement, and that using this metric to differentiate pro...

Only the k(x * , X) term depends on the test point x * , therefore to calculate the slope of the posterior mean we just need to differentiate the kernel. For the squared exponential covariance function the derivative of the kernel between x * and a training point x i is,