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Congress: ECR25
Poster Number: C-28116
Type: Poster: EPOS Radiologist (educational)
DOI: 10.26044/ecr2025/C-28116
Authorblock: Z. C. Elmaci Akin, D. Bako, A. Akin; Samsun/TR
Disclosures:
Zeynep Celile Elmaci Akin: Nothing to disclose
Derya Bako: Nothing to disclose
Akif Akin: Nothing to disclose
Keywords: Gastrointestinal tract, Musculoskeletal soft tissue, Paediatric, CT, MR, Ultrasound, Diagnostic procedure, Infection
Learning objectives Discuss the imaging features of hydatid cysts and imaging methods used in diagnosis. Review the different locations of cyst hydatid. Present our cases of hydatid cysts, particularly those that may occur in atypical locations.
Read more Background Hydatid cyst is a parasitic infection caused by the larval stage of the Echinococcus tapeworm[1]. Echinococcus is transmitted to humans from animals, and humans are accidental hosts[1]. It is endemic in many parts of the world, and the World Health Organization estimates its prevalence at 50/100,000 in endemic regions.Echinococcus is primarily observed in the liver and lungs but can be seen in any organ. Spleen, kidney, pancreas, intraperitoneal space, heart, incision scar, retroperitoneal space, head and neck, chest wall, brain,...
Read more Findings and procedure details ImagingImaging methods are used for diagnosis, which is supported by serology. Ultrasound, CT, and MRI are helpful in diagnosis.The location and stage of the lesion determine which imaging technique is used.Ultrasound is the first diagnostic method used. It effectively detects membranes, septa, and hydatid sand within the cyst[4].Computed tomography (CT) is used in areas and cases where ultrasound is limited—for example, obese patients, calcific lesions, or difficult locations such as brain or lung.Magnetic resonance imaging (MRI) is helpful in differentiating...
Read more Conclusion Hydatid cysts can be seen in any organ and mimic benign or malignant cystic lesions. Therefore, they should be considered a differential diagnosis. Other organs or tissues may be affected even without liver involvement, and diagnosis can be much more challenging in such cases, especially in patients living in endemic areas. However, we should not forget that with increasing migration rates, we may encounter hydatid disease in many places, not just in endemic areas but in a globalizing world.  
Read more References [1]      N. Badwaik, P. Gharde, R. K. Shinde, H. Tayade, P. S. Navandhar, and M. Patil, “Hydatid Cyst or Echinococcosis: A Comprehensive Review of Transmission, Clinical Manifestations, Diagnosis, and Multidisciplinary Treatment,” Cureus, Jul. 2024, doi: 10.7759/cureus.63713.[2]      M. Yeola-Pate et al., “Different Locations of Hydatid Cysts Case Illustrations and Review of Literature.”[3]      J. Prousalidis, K. Tzardinoglou, L. Sgouradis, C. Katsohis, and H. Aletras, “WORLD Journal of SURGERY Uncommon Sites of Hydatid Disease,” 1998.[4]      G. Durhan, A. A. Tan, S. A. Düzgün,...
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