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Which parasite is responsible for this disease?
Taenia solium also known as pork tapeworm. Neurocysticercosis is caused by ingestion of uncooked pork containing cysticercus larva.
How many pathological stages are there ?
1. Vesicular 2. Colloidal vesicular 3. Granular nodular 4. Nodular calcified
Multiple ring-enhancing lesions with few showing eccentric dot within (suggestive of scolex) noted in both supratentorial and infratentorial location. There is perifocal oedema.
See the selected postcontrast images showing a cyst with dot sign in left frontal lobe.