Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Sarcoidosis mimicking lymphoma on positron emission tomography-computed tomography in two patients treated for lymphoma: two case reports | JOURNAL OF MEDICAL Sr CASE REPORTS Open Access Case report Sarcoidosis mimicking lymphoma on positron emission tomography-computed tomography in two patients treated for lymphoma two case reports Ozden Ozer1 Ahmet Emre Eskazan2 M Cem Ar2 Huseyin Bekoz3 Fehmi Tabak4 Gul Ongen5 and Burhan Ferhanoglu2 Addresses Istanbul Pathology Group Istanbul Turkey 2Department of Internal Medicine Division of Haematology Cerrahpasa Medical Faculty Istanbul University Kocamustafapaja Istanbul Turkey 3Florence Nightingale Gayrettepe Hospital Istanbul Turkey 4Department of Infectious Diseases and Clinical Microbiology Cerrahpasa Medical Faculty Istanbul University Istanbul Turkey and 5Department of Chest Medicine Cerrahpasa Medical Faculty Istanbul University Istanbul Turkey Email OO - ozerozden@ AEE - emreeskazan@ MCA - muhcar@ HB - FT - fehmitabak@ GO - gulongen@ BF - bferhan@ Corresponding author Received 28 July 2008 Accepted 23 January 2009 Published 23 June 2009 Journal of Medical Case Reports 2009 3 7306 doi 1752-1947-3-7306 This article is available from http jmedicalcasereports article view 7306 2009 Ozer et al licensee Cases Network Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Abstract Introduction Sarcoidosis is a granulomatous disease that mostly involves the lungs. Its association with malignancies has been well documented. Several mechanisms have been proposed that may underlie this concurrence including triggering tumour antigens and defective cellular immunity. Case presentations We briefly review the literature on malignancy associated sarcoidosis and report two female lymphoma patients of 49 and 56 years