%0 Case Reports %T DRESS and Stevens-Johnson Syndrome Overlap Secondary to Allopurinol in a 50-Year-Old Man-A Diagnostic and Treatment Challenge: Case Report. %A Martínez JD %A Franco R %A Sáenz LM %A Alvarado AG %A García JA %A Delgado SM %A Ionescu MA %A Busilă C %A Tatu AL %J Life (Basel) %V 13 %N 12 %D 2023 Nov 24 %M 38137852 %F 3.251 %R 10.3390/life13122251 %X Drug reaction with eosinophilia and systemic symptoms (DRESS) syndrome is a drug reaction commonly related to eosinophilia, from uncertain epidemiology, and without consensus for diagnosis and treatment globally. It presents a great challenge in its management and is characterized by fever, lymphadenopathy, skin rash, and multisystemic involvement. An aggressive and difficult-to-manage clinical case is presented in a 50-year-old man with chronic kidney disease due to diabetes mellitus type 2 and systemic arterial hypertension, who developed an unusual variant similar to DRESS and Stevens-Johnson syndrome (SJS) overlap secondary to allopurinol, with skin manifestations without eosinophilia, but fulfilling clinical and laboratory criteria for DRESS and SJS syndrome.