Hodgkin lymphoma in United Arab Emirates UAE, epidemeology, histological types and treatments outcome: Case series of 47 cases from Mafraq Hospital, Abu Dhabi, UAE.

Abstract

e19016 Background: Approximately 9,050 Americans gets diagnosed annually with Hodgkin's Lymphoma HL and approximately 1,150 dies each year from HL(1).Nodular Lymphocyte-predominant LP (NLPHL) represents 5% of HL (2). Mafraq Hospital is a tertiary hospital in Abu Dhabi, UAE, We suspected that we are seeing more than expected cases of NLPHL.Therefore, we carried a retrospective study to review all cases of HL seen at our oncology unit for the period from 01/01/2016 till 30/06/ 2018. Methods: We developed Excel data collection tool. After Ethics approval, Electronic Medical Records of all cases seen with the diagnosis of HL between 01/2016 and 06/2018 at Mafraq Hospital were reviewed. Results: Total of 47 case were collected. 8 cases (17%) were found to have NLPHL, The rest of cohort were 39 cases, 22 (57%) of them had nodular sclerosis HL, 4 cases (10%) mixed cellularity HL, 2 (5%) lymphocyte rich HL, no cases of lymphocyte depleted HL. 9 (23%) of cases were classical HL with no type as diagnosis was made from core biopsies. 2 cases (5%) unlisted type.The stage for the 42 case were as follows Stage I: 1 case = 2.3%, Stage II: 24 case = 57.1%Stage III: 11 case = 26.1%Stage IV: 6 cases = 14.2%. Conclusions: We saw 23 (49%) females and 24 (51%) males. Our hypothesis that NLPHL is more frequently seen in UAE seems to be correct as 17% of all HL cases seen were from this subtype. Mean age at diagnosis of all HL cases is 33 years. In the NLPHL there were 2 (25%) females and 6 (75%) males. Mean age at diagnosis for NLPHL is 31.8 years. Most HL patients received ABVD as first line regimen. This is documented in 38 out of 47 case. Mean overall survival registered at the closure of the study is 45 months. It is important that this overall survival is premature as no patient has relapsed or died.