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Rationale: Dapsone is used for treating infectious and immunological disorders, but it may cause dapsone hypersensitivity syndrome (DHS), a serious concern for medical staff. However, in non-leprotic patients, the manifestations of DHS can be atypical and various, leading to diagnostic challenges and potential delays in treatment initiation, which requires attention.
Patient Concerns: A 17-year-old Chinese male developed DHS after 3-week dapsone treatment for vasculitis, showing the risk of dapsone use in young patients.
Diagnosis: DHS symptoms include fever, rash, and lymphadenopathy, which can be life-threatening. Diagnosis for this patient was based on symptom recognition, medical history review, physical examination, and the link between dapsone intake and symptom onset.
Interventions: Once diagnosed, dapsone was withdrawn immediately. Corticosteroids were given to reduce inflammation, and antipyretics and anti-histamines were used for symptom relief.
Outcomes: After treatment, the patient improved. Fever subsided quickly, the rash resolved in a week, and lymphadenopathy shrank. Follow-up showed full recovery with no symptom recurrence.
Lessons: This report details a case and reviews published cases of DHS. Summarizing their features aims to improve diagnostic accuracy and management strategies, thus helping healthcare providers handle similar cases better.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC12237390 | PMC |
http://dx.doi.org/10.1097/MD.0000000000043073 | DOI Listing |
Curr Health Sci J
March 2025
Neurosurgery Department, Hospital de Clínicas de Passo Fundo, Passo Fundo, Brazil.
Polymethyl methacrylate (PMMA) has been routinely used as bone cement, being well tolerated by most patients. The authors report the case of a 42-year-old patient that underwent cranioplasty with PMMA prosthesis, that reported progressive and persistent skin symptoms starting 45 days after surgery. Dermatologic evaluation revealed an extensive reddish scar plaque, associated with polytrichia and alopecia, located only in the left parieto-occipital region, above the PMMA cranioplasty.
View Article and Find Full Text PDFACS Pharmacol Transl Sci
July 2025
Postgraduate Program in Pharmaceutical Sciences, Faculty of Pharmacy, Federal University of Pará/UFPA, Rua Augusto Corrêa, 01, Bairro Guamá, 66075-110 Belém, Pará, Brazil.
Dapsone (DDS) is a sulfone clinically used in the treatment of dermatological disorders, such as dermatitis herpetiformis and psoriasis, besides , , and infections. However, the chronic use of DDS can lead to adverse effects involving all organ systems, such as dapsone hypersensitivity syndrome, methemoglobinemia, hemolytic anemia, and liver injury. These effects probably occur due to the presence of its toxic metabolite DDS-NOH, which can generate reactive oxygen species (ROS), and iron overload, causing oxidative stress.
View Article and Find Full Text PDFMedicine (Baltimore)
July 2025
The Second Hospital Affiliated to Guizhou University of Traditional Chinese Medicine, Guiyang, Guizhou, China.
Rationale: Dapsone is used for treating infectious and immunological disorders, but it may cause dapsone hypersensitivity syndrome (DHS), a serious concern for medical staff. However, in non-leprotic patients, the manifestations of DHS can be atypical and various, leading to diagnostic challenges and potential delays in treatment initiation, which requires attention.
Patient Concerns: A 17-year-old Chinese male developed DHS after 3-week dapsone treatment for vasculitis, showing the risk of dapsone use in young patients.
Signal Transduct Target Ther
June 2025
Dermatology Hospital of Shandong First Medical University, Jinan, Shandong, China.
Severe cutaneous adverse drug reactions (SCARs) are life-threatening diseases, which are associated with human leukocyte antigen (HLA) risk variants. However, the low positive predictive values of HLA variants suggest additional factors influence disease susceptibility. Using dapsone hypersensitivity syndrome (DHS) as a paradigm for SCARs, we show that the DHS patients harbor a sex-related global reduction in blood NK cells, contributing to the higher incidence of reactions in females.
View Article and Find Full Text PDFInt J Dermatol
June 2025
Dermatology, Venereology and Leprology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Background: The introduction of the World Health Organization's multidrug therapy (WHO-MDT) has significantly advanced leprosy treatment. Although dapsone is a fundamental component of MDT, it presents risks of adverse drug reactions (ADR), including the potentially fatal dapsone hypersensitivity syndrome (DHS).
Methods: Consequently, we conducted a retrospective observational study by reviewing the records of patients registered at the leprosy clinic within the department of dermatology at a tertiary care center from 2010 to 2022.