A 68-year-old Chinese male who had come to Japan about 2 years ago was admitted to our hospital because of frequent attacks of the left facial spasm without other neurological abnormalities. Laboratory examination disclosed localized paroxysms in the right frontal region on EEG, multiple calcified lesions on the brain CT, and a low-intensity area adjoining a calcified lesion with ring enhancement in the right precentral gyrus on MRI, which was considered to have caused the left facial spasm. A X-ray photograph of the thigh revealed multiple calcifications in the muscle. The diagnosis of cerebral cysticercosis was established by weakly positive anticysticercian antibodies in the serum in addition to the findings described above. The low-intensity area in the right precentral gyrus showing tissue edema probably resulted from acute inflammation caused by some substances of the larva of Taenia solium leaked into the surrounding tissue from a ruptured cyst. Calcifying cysts do not usually rupture, but the serial MRI ringings of this case suggest that this might have happened, although there is another possibility that a ruptured growingcyst and a calcified cyst, resulted from repeated infections, were simultaneously present side by side. Cysticercosis is no longer limited to individuals living in areas where the disease is endemic, since it has become easier than before for people to travel or migrate. Some attention should be paid to neurocysticercosis, when one encounters focal neurological symptoms such as motor paresis, partial seizures and so on.
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