Tehran University of Medical Sciences Iranian Journal of Parasitology 1735-7020 11 4 2016 12 25 591 594 Masoud SOOSARAEI Student Research Committee, Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran Shahriar ALIZADEH Department of Pathology, Social Security Organization, Hakim Jorjani Hospital , Gorgan, Iran Mahdi FAKHAR Molecular and Cell Biology Research Center, Department of Parasitology and Mycology, School of Medicine, Mazandaran University of Medical Sciences, Sari, Iran Elham Sadat BANIMOSTAFAVI Department of Radiology, Imam Khomeini Hospital, Mazandaran University of Medical Sciences, Sari, Iran 2016 12 25 2016 12 25 We report an unusual case of primary hydatid cyst of the mandibular angle without glands involvement, in the left supraclavicular region of the neck with no involvement of any other regions of the body. In July2012, a25-yr old woman, from Golestan Province, Northeast Iran was admitted to ourENTClinic, with one-year history of a progressively increasing swelling, pain and gradually growing mass located in the left side of neck region. The patient was diagnosed by Fine Needle Aspiration Cytology (FANC) and histopathology examination. Hydatid cyst should be considered in differential diagnosis of soft tissue mass such as branchial cleft cyst (BCC) and or dermoid cyst in the cervical region especially in endemic areas. Moreover, FANC could be recommended as a valuable, rapid, simple, and safe procedure to diagnose hydatid cyst especially in unusual locations.   https://ijpa.tums.ac.ir/index.php/ijpa/article/view/1361 https://ijpa.tums.ac.ir/index.php/ijpa/article/download/1361/639