Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 3 4 2008 12 15 60 64 Maliheh Metanat Research Center for Infectious Diseases and Tropical Medicine, Zahedan University of Medical Science Batool Sharifi- mood Research Center for Infectious Diseases and Tropical Medicine, Zahedan University of Medical Science Mahnaz Sandoghi Rheumatology Dept. Zahedan University of Medical Sciences, Zahedan, Iran Mahnaz Sandoghi Rheumatology Dept. Zahedan University of Medical Sciences, Zahedan, Iran Roya Alavi-Naini Research Center for Infectious Diseases and Tropical Medicine, Zahedan University of Medical Science 2015 10 03 A 48-year-old man referred with pain and swelling at the upper and middle third of left tibia with a history of previous os­seous hydatid disease three years ago. Despite surgical procedure which was performed in this case, recurrence was ob­served and repeated exploration with wide resection and oral medical therapy were recommended. Bone hydatid cyst is an uncommon disease with difficult response to treatment. Hydatid disease should be included in the differential diagnosis of cystic lesions of bone in endemic regions. https://ijpa.tums.ac.ir/index.php/ijpa/article/view/81 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/81/80