Publications by authors named "J P Callen"
Dermatologic manifestations of hereditary hemochromatosis: A systematic review.
J Eur Acad Dermatol Venereol
May 2024
Article Synopsis
- * The study reviewed 1582 publications from 1904 to 2023, narrowing it down to 22 studies, primarily case reports from the USA, UK, and France, involving 148 patients with skin symptoms associated with HH.
- * Key findings highlight diverse skin symptoms such as hyperpigmentation and resistant pruritus linked to iron deposition, while also indicating potential links between HH and skin cancers, underlining the importance of early identification for familial care.
Pyoderma gangrenosum (PG) is an inflammatory neutrophilic dermatosis with variable clinical features. The classic presentation is an ulceration with an erythematous to violaceous undermined border. Extracutaneous manifestations may occur.
View Article and Find Full Text PDFThe perturbed ion temperature and toroidal flow were measured in rotating neoclassical tearing modes (NTM) in a tokamak for the first time. These toroidally and radially resolved profiles were obtained by impurity ion spectroscopy in a 2,1 NTM in DIII-D. In agreement with drift-kinetic simulations, the electron temperature profile is flat, while the ion temperature gradient is restored across the magnetic island O point in the presence of fast ions; the perturbed flow has minima in the O points and maxima at the X points.
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