Diabetic foot ulcerations (DFU) represent a major cause of hospitalization and amputation. In people with diabetes it's not uncommon to find chronic wounds due to pathogenic mechanisms different from diabetes. Here we report the case of a foot lesion misdiagnosed as DFU but actually caused by diffuse large B-cell lymphoma.
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| http://dx.doi.org/10.1016/j.diabres.2016.01.017 | DOI Listing |
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Parametrically Long Lifetime of Superdiffusion in Nonintegrable Spin Chains.
Phys Rev Lett
December 2024
Max Planck Institute for the Physics of Complex Systems, Nöthnitzer Straße 38, 01187 Dresden, Germany.
Superdiffusion is surprisingly easily observed even in systems without the integrability underpinning this phenomenon. Indeed, the classical Heisenberg chain-one of the simplest many-body systems, and firmly believed to be nonintegrable-evinces a long-lived regime of anomalous, superdiffusive spin dynamics at finite temperature. Similarly, superdiffusion persists for long timescales, even at high temperature, for small perturbations around a related integrable model.
View Article and Find Full Text PDFWavebreakers in excitable systems and possible applications for corrosion mitigation.
Chaos
January 2025
Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, USA.
Traveling waves of excitation arise from the spatial coupling of local nonlinear events by transport processes. In corrosion systems, these electro-dissolution waves relay local perturbations across large portions of the metal surface, significantly amplifying overall damage. For the example of the magnesium alloy AZ31B exposed to sodium chloride solution, we report experimental results suggesting the existence of a vulnerable zone in the wake of corrosion waves where local perturbations can induce a unidirectional wave pulse or segment.
View Article and Find Full Text PDFClinical Manifestations.
Alzheimers Dement
December 2024
Johns Hopkins University School of Medicine, Baltimore, MD, USA.
Background: Although it is well established that lower cognitive performance, on average, is associated with a greater risk of developing Alzheimer's disease (AD) dementia, it is unclear whether distinct cognitively-defined subgroups exist among non-demented older adults and whether such profiles map onto distinct AD neuroimaging measure profiles.
Method: The sample consisted of 167 non-demented older adults from the BIOCARD study with comprehensive neuropsychological and clinical evaluations, amyloid PET and brain MRI scans. The MRI measure included: global cortical volume in AD-signature regions and a medial-temporal lobe composite; resting-state functional connectivity within 5 large-scale cognitive networks; global white matter microstructure, index by fractional anisotropy (FA) and radial diffusion (RD) on DTI scans; and global white matter hyperintensity (WMH) volume on FLAIR scans.
Quantitative 3-T Multiparametric MRI Parameters as Predictors of Aggressive Prostate Cancer.
Radiol Imaging Cancer
January 2025
From the Departments of Radiological Sciences (D.H.S.K., I.S., V.M., W.H., K.H.S., D.S.L., S.S.R.), Medicine Statistics Core (T.G.), Pathology (A.S.), and Urology (R.E.R., S.S.R.), David Geffen School of Medicine at UCLA, 885 Tiverton Dr, Los Angeles, CA 90095.
Purpose To determine which quantitative 3-T multiparametric MRI (mpMRI) parameters correlate with and help predict the presence of aggressive large cribriform pattern (LCP) and intraductal carcinoma (IDC) prostate cancer (PCa) at whole-mount histopathology (WMHP). Materials and Methods This retrospective study included 130 patients (mean age ± SD, 62.6 years ± 7.
View Article and Find Full Text PDFNon-Hodgkin Lymphoma of the External Auditory Canal: A Rare Primary Involvement.
Cureus
December 2024
Internal Medicine Department, Unidade Local de Saúde do Nordeste, Bragança, PRT.
The authors describe a rare case of non-Hodgkin lymphoma (NHL) with primary involvement of the external auditory canal (EAC) and subsequent dissemination to the central nervous system, initially manifesting as a benign ear infection. This case highlights the importance of considering differential diagnoses in patients with persistent or worsening symptoms unresponsive to empirical treatment. A 53-year-old man presented with a one-week history of aural fullness, otalgia, and otorrhea in the left ear.
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