AUTHOR=Voicu Dragoș F. , Popazu Constantin , Râșnoveanu Delia Mihaela , Mihalache Daniela , Toma Alexandra TITLE=Case Report of a Hidden Intruder—Extremely Rare Presentation of Hydatidosis as a Nuchal Tumoural Mass JOURNAL=British Journal of Biomedical Science VOLUME=Volume 81 - 2024 YEAR=2024 URL=https://www.frontierspartnerships.org/journals/british-journal-of-biomedical-science/articles/10.3389/bjbs.2024.12446 DOI=10.3389/bjbs.2024.12446 ISSN=2474-0896 ABSTRACT=Introduction: The parasitic tapeworm impersonated by the larvae of Echinococcus granulosus represents the etiology of the hydatid pathology. The predilect site of invasion is the liver but there are other cases of different localization all over the body, regardless of the type of the invaded tissue. A soft tissue hydatidosis can be a real challenge in terms of the diagnosis for the clinician, and it might generate various complications such as anaphylactic shock. The aim of the present work is to illustrate a unique case of primary hydatidosis located in the nuchal region. Case Report: We report the case of a 68-year-old male patient, zootechnic, that presented to the hospital for a tumoral mass with dimensions of about 12/10 centimeters located in the nuchal region. The complex approach consisted of surgical therapy along with histopathological confirmation of the diagnostic and antiparasitic medication that led us to a complete recovery with a low probability of recurrence. Discussion: Patients with primary soft tissue hydatidosis represent an exceptionally rare encounter, but the surgeon must take into consideration this clinical diagnosis especially for patients located in an endemic region with occupations that might have exposed the patient to this type of parasite.