Neutrophilic fixed drug eruption, a histopathologic variant or an expected finding?-A report of two cases and review of the literature.
Journal of cutaneous pathology(2023)
摘要
Fixed drug eruption (FDE) is an adverse drug reaction characterized by recurrent circumscribed lesions at the same location upon re-exposure to the culprit medication, resulting in distinct postinflammatory hyperpigmentation. Histopathologically, FDE demonstrates a predominantly lymphocytic interface or lichenoid infiltrate with basal cell vacuolar changes and keratinocyte dyskeratosis/apoptosis. The term "neutrophilic fixed drug eruption" has been used to describe cases in which the inflammatory infiltrate is predominantly neutrophilic. The infiltrate can extend deeper in the dermis, potentially mimicking a neutrophilic dermatosis such as Sweet syndrome. We present two cases and review the literature to discuss the possibility that a neutrophilic inflammatory infiltrate may be an expected finding in FDE, rather than a histopathologic variant.
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关键词
drug eruption,histopathologic variant
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