PT - JOURNAL ARTICLE AU - Abheek Sil AU - Moni Sankar Bhattacharjee AU - Atanu Chandra AU - Jayasri Das Pramanik TI - Sulfasalazine-induced drug reaction with eosinophilia and systemic symptoms (DRESS) with concomitant acute chikungunya virus infection: possible role of new viral trigger AID - 10.1136/bcr-2021-244063 DP - 2021 Oct 01 TA - BMJ Case Reports PG - e244063 VI - 14 IP - 10 4099 - http://casereports.bmj.com/content/14/10/e244063.short 4100 - http://casereports.bmj.com/content/14/10/e244063.full SO - BMJ Case Reports2021 Oct 01; 14 AB - Drug reaction with eosinophilia and systemic symptoms (DRESS) is designated as a potentially lethal adverse drug effect with characteristic signs and symptoms such as skin rash, fever, leucocytosis with eosinophilia or atypical lymphocytes, lymphadenopathy and liver or renal dysfunction. In addition to most commonly implicated drug category (aromatic anticonvulsants), lamotrigine, sulfonamides, dapsone and abacavir may also induce this syndrome. We describe here a case a sulfasalazine-induced DRESS with coexisting chikungunya fever. The shared presentation of fever with rash in both conditions made it a challenging diagnosis. Sulfasalazine hypersensitivity manifesting as DRESS has rarely been reported. Furthermore, we document chikungunya virus (CV) as a possible triggering agent for DRESS. To the best of our knowledge, CV as a viral aetiology in DRESS has not been reported previously in the literature.