DDx
Differential Diagnoses
Media Gallery
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Cysticercosis life cycle. Image courtesy of the Centers for Disease Control and Prevention.
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MRI of 6-year-old boy from Peru with single right frontal cyst (coronal image). Image courtesy of Eric H. Kossoff, MD.
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Axial image MRI of same patient as in Media file 2. Image courtesy of Eric H. Kossoff, MD.
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CT scan of intraparenchymal cysticercosis with lesions in different stages. Lesions that are breaking down demonstrate peripheral enhancement after intravenous contrast injection, whereas lesions without peripheral enhancement are intact. Typical residual calcification from an old focus of infection is observed in the left occipital lobe. Image courtesy of Fred Greensite, MD.
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Racemose (extraparenchymal) cysticercosis (T1-weighted MRI). Note the cyst in the fourth ventricle, causing obstructive hydrocephalus. Image courtesy of Fred Greensite, MD.
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Racemose cysticercosis (T1-weighted MRI). Note cluster of cysts anterior to the pons and inferior to the hypothalamus in a different patient. Image courtesy of Fred Greensite, MD.
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Racemose cysticercosis (same patient as in Media file 6). Note the enhancing margin of the cysts in the suprasellar cistern and in the left sylvian fissure after gadolinium injection (T1-weighted MRI). Image courtesy of Fred Greensite, MD.
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Racemose cysticercosis (same patient as in Media files 6-7). Coronal image (postgadolinium T1-weighted MRI) posterior to the slice in Media file 7. Cysts in this slice (below the hypothalamus) do not have enhancing margins. Also, unlike intraparenchymal lesions, scolexes are typically not identified in the cysts of racemose cysticercosis. Image courtesy of Fred Greensite, MD.
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