Tehran University of Medical Sciences International Journal of Hematology-Oncology and Stem Cell Research 2008-2207 5 1 2011 03 15 39 40 Nasim Valizadeh Hematology-Oncology Department, Emam Khomeini Hospital, Urmia University Of Medical Sciences, Urmia, Iran 2015 10 01 Introduction: Fournier's gangrene or necrotizing fasciitis of external genitalia is a medical emergency. It was reported in cases of acute promyelocytic leukemia (APL) before and during induction therapy with all-trans retinoic acid (ATRA).We present a case of APL that developed Fournier's gangrene  during ATRA therapy.   https://ijhoscr.tums.ac.ir/index.php/ijhoscr/article/view/271 https://ijhoscr.tums.ac.ir/index.php/ijhoscr/article/download/271/264