Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2012.186.191VahediMd. Amir VahediMd. Leila 42012154Echinococcosis is very frequent helminthic infection in human being. The disease is endemic in Iran and particularly in its northwestern region, East Azerbaijan. The objective of this study was to study demographics of patients with cystic echinococcosis in East Azerbaijan; as well as to repot the sites of involvements. In this cross-sectional study, 318 patients with surgical and nonsurgical cystic echinococcosis were recruited from three referral centers in Tabriz within a 10-year period of time. The patients demographics (age and gender) and the site of infection were investigated. Among the patients, females were predominant (57.5 vs. 42.5%). The mean age of patients was 32.59±18.47 (range: <1-87) years and the most frequently age group was 20-30 years (23.6%), followed by the age groups of 30-40 years (21.7%), 10-20 years (14.2%), 40-50 years (11.9%), 50-60 years (11.3%), <1 year (6%), 60-70 years (4.7%), 1-10 years (4.1%) and finally, >70 years (2.5%). The lung was the most frequently infected organ (48.1%), followed by the liver (28.9%), gallbladder (3.5%), spleen and kidney (each one in 2.2%), abdomen, intestine, pleura, bronchus and mediastinum (each one in 1.6%), chest wall and heart (each one in 1.3%), brain, pericardium, facial sinus, pancreas and esophagus (each one in 0.6%) and the ovary, uterus, axillary region, pelvis and femur (each one in 0.3%). In conclusion, this study showed that the patients with hydatid cysts in East Azerbaijan Province are mainly females in the age group of 20-40 years. The lung and liver are the major sites of infection in these patients.]]>Ahmadi, N. and A. Dalimi,2006Echinococcus granulosus isolates from human, sheep and camel in Iran.]]>68590Ahmadi, N.A. and F. Badi,201128450456Al-Qudah, K.M., A.M. Al-Majali and M.M. Obaidat,20083269274Altintas, N.,200385105112Amr, S.S., Z.S. Amr, S. Jitawi and H. Annab,199488623627Azlaf, R. and A. Dakkak,20061378393Bardonnet, K., M.C. Benchikh-Elfegoun, J.M. Bart, S. Harraga and N. Hannache et al.,20031163544Bellil, S., F. Limaiem, K. Bellil, I. Chelly and A. Mekni et al.,200987123126Conchedda, M., A. Antonelli, A. Caddori and F. Gabriele,201059454459Craig, P.S. and E., Larrieu,200661443508Dakkak A.,2010174211Dowling, P.M., M.N. Abo-Shehada and P.R., Torgerson,2000946975Eckert, J., M.A. Gemmel, F.X. Meslin and Z.S. Pawlowski,20011st Edn.,Ernest, E., H.E. Nonga, N. Kynsieri and S. Cleaveland,201057e124e129Haroun, E.M., O.H. Omer, O.M. Mahmoud and A. Draz,200817173Ibrahim, B.B., F.M. Haridy, M.M. Hegazi and T.A. Morsy,200737681688Larrieu, E.J., M.T. Costa, M. del Carpio, S. Moguillansky, G. Bianchi and Z.E. Yadon,2002964352Magambo, J., E. Njoroge and E. Zeyhle,200655S193S195Mellau, L.S.B., H.E. Nonga and E.D. Karimuribo,20103179188Mirani, A.H., N. Akhtar, M.A. Brohe, S. Bughio and F.C. Oad,2000313111312Ghazani, M.H.M., M.R. Valilou, F.B. Kharati and K. Zirak,200833035Oudni-M'Rad, M., S. M'Rad, M. Gorcii, M. Mekki and M. Belguith et al.,20071001013Pazoki, R., B. Kazemi, M.R. Nazari, J. Masoud and M.R. Akbari,2006Granulosus Antigen B.]]>9350354Romig, T., R.A. Omer, E. Zeyhle, M. Huttner and A. Dinkel et al.,20111814347Sabry, M.A.,20077720728Sabry, M.A. and H.S. Lotfy,20094115122Mıman, O., M. Atambay, N.E. Aydin and N. Daldal,201034179183Moro, P. and P.M. Schantz,200655S181S186Sadjjadi, S.M.,200655S197S202Salem, C.B., F. Schneegans and J.Y. Chollet,201110415Sarkari, B., S.M. Sadjjadi, M.M. Beheshtian, M. Aghaee, F. Sedaghat,201057146150Shahnazi, M., H. Hejazi, M. Salehi and A.R. Andalib,2011Echinococcus granulosus isolates in Isfahan, Iran.]]>1174750Torgerson, P.R., B. Oguljahan, A.E. Muminov, R.R. Karaeva, O.T. Kuttubaev, M. Aminjanov and B. Shaikenov,200655S207S212Torgerson, P.R. and C.M. Budke,200374191202Torgerson, P.R., B.S. Shaikenov, K.K. Baitursinov and A.M. Abdybekova,200296124128Xu, M., H. Kuerban, C. Kong, X. Ge, L. Zhang, L. Wang, Z. Dong and L. Yu,200282176179Akhtar, T., S. Qadir, Z. Anwar and A. Maqbool,1998Echinococcus Granulosus: A morphometric and histopathological response of kidney in rabbits.]]>1154158