Headache, Seizure

24-year-old presents with complaints of headache and seizures.

Figure 1A and B. Multiple small cysts with low signal central scolex on T2WI.

Figure 1C and D. Multiple small cysts with low signal central scolex on T2WI.

Figure 1E and F. Multiple small cysts with low signal central scolex on T2WI.

Figure 1G and H. Multiple small cysts with low signal central scolex on T2WI.

Figure 2. T1W1 image shows multiple low signal cysts with hyperintese scolex.

Figure 3. Coronal image shows low signal multiple small cysts on FLAIR.

Diagnosis: Neurocysticercosis

Vesicular presents with cyst with dot sign.

In granular nodular, cyst retracts.

Neurocysticercosis (NCC) is caused by a CNS infection with the pork tapeworm Taenia solium.

CSF serology may be helpful with the initial diagnosis, especially in cases of intraventricular/subarachnoid infection.

Infection, which leads to extra-intestinal disease (including neurocysticercosis), usually occurs as a result of eating food or drinking water contaminated by human feces containing T. solium eggs.

Extra-intestinal infection undergoes specific clinical and imaging changes at it progresses through four stages of infection.

Typically the parenchymal cysts are small (1 cm), whereas the subarachnoid ones can be much bigger (up to 9 cm).

General imaging differential considerations include cerebral metastasis.