en Pediatric Hematology & Oncology Pediatric Hematology & Oncology گزارش مورد Case report Hodgkin lymphoma (HL) as a malignant tumor presents with lymphadenopathy and systemic complaints. The origin of this tumor is mostly suggested to be B lymphocytes. There is a close relationship between autoimmunity and HL, but the mechanism of this immune syndromes is unclear. Immune thrombocytopenia (ITP) is the most common autoimmune syndrome which may present before, at the same time, and even after treatment of the HL. We present a case of ITP as a primary sign of relapse of HL in a 15-year-old boy after complete treatment of HL. Hodgkin lymphoma, Immune thrombocytopenia, Relapse, Autoimmunity 72 74 http://ijbc.ir/browse.php?a_code=A-10-289-4&slc_lang=en&sid=1 Hossein Karami karami_oncologist@yahoo.com 10031947532846004880 10031947532846004880 No Thalassemia Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, IR Iran Mohammad Naderisorki dr.naderisorki@gmail.com 10031947532846004881 10031947532846004881 Yes Thalassemia Research Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, IR Iran Maryam Ghasemi 10031947532846004882 10031947532846004882 No Associate Professor of Pathology, Immunogenetics Center, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran Sayed Mohammad Sakhaei 10031947532846004883 10031947532846004883 No Assistant Professor of Interventional Radiology, Department of Radiology, Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran