Case 299

 A 56-year-old female presented in our hospital with a referring letter from a neuro-surgeon clinic saying that she experienced recurrent left diplopia yesterday following the previous diplopia episode occurring around 8 months before. She took brain CT for further investigation (Figs. 1, 2).

What brain nerve nucleus exists in the lesion with high attenuation?

1.　Optic nerve nucleus

2.　Oculomotor nerve nucleus

3.　Trochlear nerve nucleus

4.　Abducens nerve nucleus

5.　Trigeminal nerve nucleus

answer

2023.5.18