Diffuse dermal angiomatosis (DDA) is a rare, benign disease that can serve as the precursor to critical limb ischemia. Pruritic, erythematous plaques form from a proliferation of endothelial cells in response to dermal hypoxia. We present the case of a 63-year-old female patient with DDA of the left medial thigh, followed by ischemia of her distal extremities. Revascularization of her left leg resulted in resolution of the DDA and healing of her ulcers. DDA can be an important clue to identify significant peripheral vascular disease.
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http://dx.doi.org/10.1016/j.jvscit.2023.101303 | DOI Listing |
Pediatr Dermatol
December 2024
Division of Dermatology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
A 3-year-old boy presented with an unusual combination of indurated skin, sclerotic plaques with lichenification, and yellowish papules. Histopathology revealed diffuse dermal mucin deposits, and laboratory tests showed a positive throat culture for Group A streptococcus and elevated serum anti-streptolysin titers. An 10-day course of oral amoxicillin was associated with near-complete resolution of all dermatological findings within 4 months.
View Article and Find Full Text PDFJ Cutan Pathol
December 2024
Department of Dermatology, University of Virginia, Charlottesville, Virginia, USA.
Background: Mpox (formerly known as monkeypox), a zoonotic disease caused by Monkeypox virus (MPXV), has become an international outbreak since May 2022. Mpox often presents with a mild systemic illness and a characteristic vesiculopustular skin eruption. In addition to molecular testing, histopathology of cutaneous lesions usually shows distinctive findings, such as epidermal necrosis, balloon degeneration, papillary dermal edema, and focal dermal necrosis, which have proven helpful in the diagnosis of mpox.
View Article and Find Full Text PDFInt J Pharm
December 2024
School of Chemistry and Chemical Engineering, University of Surrey, Guildford GU2 7XH, UK.
Purpose: Presented is the development of a workflow for end-to-end (e2e) in silico modelling of percutaneous absorption under a range of test conditions, integrating multiple calculation and analysis steps for in-silico simulation of dermal absorption. The aim is to achieve a digital twin that can be used by non-modelling experts to simulate transdermal permeation.
Methods: A KNIME-based toolbox is used to create the workflow for the E2E in-silico model.
Rheumatology (Oxford)
December 2024
Department of Rheumatology and Clinical Immunology, University Medical Center Utrecht, Utrecht, the Netherlands.
Objectives: Cellular senescence and endothelial-to-mesenchymal transition (EndMT) are profibrotic cellular processes involved in systemic sclerosis (SSc), but how they respond to treatment is largely unknown.
Methods: Skin biopsies from diffuse cutaneous SSc (dcSSc) patients who underwent either autologous haematopoietic stem cell transplantation (aHSCT) or cyclophosphamide pulse (iv CYC) treatment were collected before and 6 months after randomisation in the Autologous Stem Cell Transplantation International Scleroderma (ASTIS) trial. The extent of fibrosis, inflammation, senescence, EndMT and tissue remodelling were examined in histopathology.
Front Pharmacol
November 2024
Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile.
Background: A growing body of research is dedicated to developing new therapeutic agents for wound healing with fewer adverse effects. One of the proceedings being taken today in wound healing research is to identify promising biological materials that not only heal wounds but also vanish scarring. The effectiveness of nanofibers like polyvinyl alcohol (PVA), in improving wound healing can be related to their unique properties.
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