Delayed systemic allergic reactions to corticosteroids

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Abstract
From the limited number of reports in the literature, it would appear that various types of delayed reactions from systemically, intralesionally, and intra-articularly administered corticosteroids are rare, particularly given their widespread use. The purpose of this literature review is to summarize in table form the reported cases of generalized delayed systemic corticosteroid reactions with respect to patient presentation, methods of evaluation, and conclusions reached. In total, 24 cases of generalized delayed systemic corticosteroid reactions have been reported in the literature. Clinical presentation (timing and cutaneous manifestations) as well as evaluation of these patients has been variable; reactions reported include eczematous or exanthematous eruptions, with or without bullae or purpura. In 16 cases, the diagnoses have been supported by positive patch or intradermal testing. Overall, it appears that generalized delayed systemic reactions to corticosteroids show considerable variability and are infrequently reported. Patch and intradermal tests with standardized allergens appear to be the most useful tests currently available to support this clinical diagnosis.