ArticleClinical practice and cases in emergency medicine2025
Drug-induced Leukocytoclastic Vasculitis Secondary to Trimethoprim/Sulfamethoxazole: A Case Report.
Article in Clinical practice and cases in emergency medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionLeukocytoclastic vasculitis (LCV) is a small vessel vasculitis typically affecting dermal capillaries and venules. The condition is often idiopathic but can be associated with infections, neoplasms, autoimmune disorders, and certain drugs. CASE REPORT: A 91-year-old female with past medical history of Alzheimer dementia and hypertension, being treated for lower extremity cellulitis, presented to the emergency department for an allergic reaction. Trimethoprim/sulfamethoxazole (TMP/SMX) had been initiated six days earlier. The patient was noted to have normal vital signs. Palpable purpura was discovered on the lower back, buttocks, lower extremities, ankles, and feet. Laboratory studies were within normal limits. Given the clinical presentation, physical exam findings, and normal eosinophil count, the diagnosis of LCV secondary to TMP/SMX was made.
conclusionMost cases of LCV are limited to cutaneous symptoms and self-resolve with supportive care.
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