Extra-axial hydatid disease (HD) is rare and may create a diagnostic challenge. Herein, we report an extremely rare case of calvarial HD with superior sagittal sinus invasion and an extension to the scalp with unusual magnetic resonance imaging findings simulating osteomyelitis and abscess. Recognition of detached endocystic membranes was the most important clue for the correct diagnosis. HD should be included in the differential diagnosis for a patient having a destructive skull lesion with peripheral enhancing extra-axial soft tissue component. Preoperative correct imaging diagnosis is crucial to improving patient management.
KernPMenezes da SilvaAAkhanOet al.The Echinococcoses: diagnosis, clinical management and burden of disease. Adv Parasitol2017; 96: 259–369.
2.
ZalaquettEMeniasCGarridoFet al.Imaging of hydatid disease with a focus on extrahepatic involvement. Radiographics2017; 37: 901–923.
3.
Abdel RazekAAEl-ShamamOAbdel WahabN. Magnetic resonance appearance of cerebral cystic echinococcosis: World Health Organization (WHO) classification. Acta Radiol2009; 50: 549–554.
4.
Abdel RazekAAWatcharakornACastilloM. Parasitic diseases of the central nervous system. Neuroimaging Clin N Am2011; 21: 815–841.
