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Vegetative Pyoderma Gangrenosum Mimicking Squamous Cell Carcinoma: A Poorly Recognized Diagnostic Challenge.
Am J Dermatopathol
December 2024
Department of Dermatology, Warren Alpert Medical School of Brown University, Providence, RI.
Pyoderma gangrenosum (PG) is a rare inflammatory neutrophilic dermatosis that is difficult to diagnose due to non-specific clinical, laboratory, and histopathologic features. Distinguishing pseudoepitheliomatous hyperplasia (PEH) from squamous cell carcinoma (SCC) is also histopathologically challenging. The connection between PEH and PG is not well recognized, and instances of PG mimicking SCC are rare.
View Article and Find Full Text PDFRepurposing Historic Drugs for Neutrophil-Mediated Inflammation in Skin Disorders.
Biomolecules
November 2024
Dermatology Unit, Department of Medicine (DIMED), University of Padua, 35121 Padova, Italy.
Neutrophil-mediated inflammation is a key feature of immune-mediated chronic skin disorders, but the mechanistic understanding of neutrophil involvement in these conditions remains incomplete. Dapsone, colchicine, and tetracyclines are established drugs within the dermatologist's therapeutic armamentarium that are credited with potent anti-neutrophilic effects. Anti-neutrophilic drugs have established themselves as versatile agents in the treatment of a wide range of dermatological conditions.
View Article and Find Full Text PDFEffects of immune cells in mediating the relationship between inflammatory bowel disease and pyoderma gangrenosum: a two-sample, two-step mendelian randomization study.
Arch Dermatol Res
January 2025
Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
Article Synopsis
- The study investigates the link between pyoderma gangrenosum (PG) and inflammatory bowel disease (IBD), highlighting that while the exact cause of their co-occurrence is unclear, there is evidence suggesting IBD increases the risk of PG.
- Researchers utilized genome-wide association study data to analyze the genetic relationship and potential mediating role of immune cells between the two conditions, employing various statistical techniques.
- The results indicated that IBD significantly raises the risk of PG, with specific types of IBD (ulcerative colitis and Crohn's disease) strongly correlating with this risk, and CD4 regulatory T cells playing a key mediating role in this interaction.
A case of treatment-resistant erosive pustular dermatosis of the scalp.
SAGE Open Med Case Rep
January 2025
Memorial University of Newfoundland, St. John's, NL, Canada.
Erosive pustular dermatosis is a rare and chronic inflammatory condition of the scalp which can be mistaken for cutaneous malignancy, precancerous lesions, dermatitis or pyoderma gangrenosum. The recurrent and resistant characteristics of erosive pustular dermatosis of the scalp pose a challenge to successful management and remission of the condition. The purpose of this case report is to provide management options and treatment recommendations for refractory cases of erosive pustular dermatosis of the scalp.
View Article and Find Full Text PDFAutoinflammatory Bone Diseases.
Balkan Med J
January 2025
Department of Pediatric Rheumatology, İstanbul University-Cerrahpaşa, Cerrahpaşa Faculty of Medicine, İstanbul, Türkiye.
Autoinflammatory bone diseases (AIBDs) constitute a recently identified subset of autoinflammatory diseases. These conditions are characterized by an exaggerated inflammatory response in the bones without any apparent etiology. Inflammatory bone lesions associated with AIBDs exhibit chronic inflammation, are typically culture-negative, and do not exhibit discernible microorganisms on histopathological examination.
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