Cavernous sinus meningioma with the involvement of the medial sphenoidal wing mimicking hypertrophic pachymeningitis. Issue 6 (30th July 2019) - Togo, Masaya; Yoshimura, Hajime; Ohira, Junichiro; Funakoshi, Yusuke; Tani, Shoichi; Hara, Shigeo; Sakai, Nobuyuki; Kohara, Nobuo