%0 Journal Article %T Hydatid Cyst of the Knee: A Case Report %A Hossein Ghanaati %A Mehdi Mohammadifar %A Mahsa Ghajarzadeh %A Kavous Firouznia %J Iranian Journal of Radiology %D 2011 %I Tehran University of Medical Sciences %X Hydatid disease is a parasitic infection which occurs in specific geographical areas such as the Mediterranean region. We report a case of hydatid cyst of the knee in a 34-year-old man who was admitted with inability to walk and a painful knee. He had a past history of liver infection nine years ago. Laboratory findings were negative. According to the high prevalence of hydatid disease in Iran, it should be considered as a differential diagnosis of Baker¡¯s cyst, synovial cyst and lipoma. %K Knee %K Echinococcus %K Infection %U http://iranjradiol.com/?page=article&article_id=3162