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Association Between Local Skin Reactions and Efficacy with 5-Fluorouracil 4% Cream in Actinic Keratosis: A Post-Hoc Analysis of Two Randomised Clinical Trials.

Dermatol Ther (Heidelb)

January 2025

Medical Direction Pharmaceutical Care and Medical Dermatology, Pierre Fabre Dermatologie, Les Cauquillous, 81500, Lavaur, France.

Introduction: Topical 5-fluorouracil (5-FU), 5% or 4% cream, is recommended among first-line treatments for actinic keratosis (AK). Local skin reactions (LSRs) are an expected and transient response to treatment with 5-FU but can lead to treatment discontinuation when severe. This analysis aimed to investigate whether the severity of LSRs during the treatment was associated with lesion clearance assessed 4 weeks after completing treatment.

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Neural-electronic interfaces through delivering electroceuticals to lesions and modulating pathological endogenous electrical environments offer exciting opportunities to treat drug-refractory neurological disorders. Such an interface should ideally be compatible with the neural tissue and aggressive biofluid environment. Unfortunately, no interface specifically designed for the biofluid environments is available so far; instead, simply stacking an encapsulation layer on silicon-based substrates makes them susceptible to biofluid leakage, device malfunction, and foreign-body reactions.

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Acute esophageal necrosis (AEN) is an uncommon endoscopic finding characterized by a patchy or diffuse circumferential black pigmentation of the esophageal mucosa, corresponding to ischemic necrosis. It usually presents with upper gastrointestinal bleeding and is thought to be caused by a systemic low blood flow in patients with predisposing risk factors, like advanced age and cardiovascular comorbidities. After initial hemodynamic stabilization, diagnosis is established by esophagogastroduodenoscopy (EGD) with careful biopsies and histological evaluation.

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Introduction: The infratemporal fossa (ITF) is considered an uncommon location for giant cell granuloma (GCG), a rare benign disease that is frequently detected in the maxilla and mandible.

Presentation Of Case: A 47-year-old male presented with right-sided hearing loss, tinnitus, and jaw claudication. Radiological imaging confirmed the presence of a mass in the ITF accompanied by bone erosion.

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Transaortic endarterectomy (TE) is an effective and durable method of restoring patency in the aorta afflicted with atherosclerotic disease, which most commonly affects the infrarenal aorta and common iliac artery. When the suprarenal aorta is involved, the disease is usually confined to the orifices of the visceral vessels without obstruction of the aortic lumen. In rare cases, dense, calcified, exophytic, and amorphous lesions causing severe luminal obstruction, termed coral reef atherosclerosis (CRA) of the suprarenal aorta, may occur.

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