Toxic epidermal necrolysis

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Synonyms: Lyell syndrome

An extended form of Stevens-Johnson syndrome/toxic epidermal necrolysis spectrum characterized by destruction and detachment of the skin epithelium involving 30% or more of the body surface area and mucous membranes. Onset usually occurs 4-28 days after administration of the causal medication and is most frequently associated with anticonvulsants antibacterial sulfonamides allopurinol nevirapine and oxicams (non-steroidal anti-inflammatory drugs) but many other medications have also been implicated. The disease is not induced by medication in 15% of cases. Histology is characterized by an epidermal necrolysis. Multiple disabling long-term sequelae (especially cutaneous ocular and psychological) are frequent.

Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on Data version July 2024

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