Int J Biomed Healthc. 2022; 10(3): 121-123 121 Merim Jusufbegovic - Recurrent Hydatid Cyst of the Head, Cervical and Lumbar Spine: a Case Report Recurrent Hydatid Cyst of the Head, Cervical and Lumbar Spine: a Case Report Merim Jusufbegovic ¹,2 , Fuad Julardzija 2 , Adnan Sehic 2 , Sandra Vegar-Zubovic ¹ ¹ Radiology clinic, Clinical center of Sarajevo University, Sarajevo, Bosnia and Herzegovina 2 Department of Radiology Technology, Faculty of Health Studies, University of Sarajevo, Sarajevo, Bosnia and Herzegovina 3 Intrade-pharm Sarajevo, Sarajevo, Bosnia and Herzegovina Corresponding author: Merim Jusufbegovic, MD. Radiology clinic, Clinical center of Sarajevo University, Sarajevo, Bosnia and Herzegovina. E-mail: mjusufbgovic@gmail.com. ORCID ID: http//www.orcid.org/0000-0000-0000-0000. Background: Spinal hydatid cyst represents a rare form of parasitic infection and is a serious clinical condition that can cause severe consequences such as paraplegia, tetraplegia, or radiculopathy. Objective: In this article, we report a case of a rare lumbar hydatid cyst in a 50-year-old man. Case presentation: We report a rare case of primary lumbar hydatid cyst. Recurrence was diagnosed by magnetic resonance imaging (MRI), although the patient had surgery and was taking albendazole regularly. Conclusion: MRI imaging should be used to diagnose the disease. Complete resection is the only treatment that can prevent the lesion from invading adjacent tissues. Regardless of all measures, the disease has a high recurrence rate. Keywords: hydatid cyst, magnetic resonance imaging (MRI), lumbar spine, recurrence. 1. BACKGROUND Hydatid cyst in humans represents a rare form of infection caused by the parasite Echinococcus gran- ulosus, resulting in focal neurological symptoms and commonly occurring in sheep farming areas of the world. The vertebral column is one of the rarest sites where Echinococcus occurs. Hydatidosis afects the spine in 0.2-1% of all patients, with the spine being afected in approximately 45% of cases (1-4). Spinal hydatidosis commonly afects the thoracic and cervical spine, while the lumbar spine and sacrum are rarely afected. (5-9). There is no scientifc consensus on which areas are most commonly afected (10). 2. OBJECTIVE The aim of this article is to report a case of a rare lumbar hydatid cyst in a 50-year-old man. 3. CASE REPORT A 50-year-old male patient with no documented medical history and unwilling to disclose details about his condition reported to the Clinic of Radiology at the Clinical Center of Sarajevo with back pain. In the medical history report, the patient stated that he had two surgeries, one in 2007 and another in 2011. In 2007, he went to the doctor because he had a growth in his lower back. It was suspected to be subcutaneous fat tissue that should be treated sur- gically. No diagnostic imaging was performed prior to surgery. Analysis revealed that the growth was Echinococcus granulosus. In 2011, the patient reported to the physician be- Case report, Received: Sep 05, 2022, Accepted: Sep 28, 2022. doi: 10.5455/ijbh.2022.10.121-123, Int J Biomed Healthc. 2022; 10(3): 121-123 Figure 1. Sagittal T2 (A), STIR (B) and Axial T2 (C) showing multiple localized cystic swellings in spinal and paraspinal areas with extension into extradural space from L4 to S3