title: [Dermoid Cyst in Meckel's Cave Presenting with Oculomotor Nerve Palsy and Trigeminal Neuralgia:A Case Report].
abstract: The authors report a rare case of an intracranial dermoid cyst found in Meckel's cave. A 63-year-old woman developed left oculomotor nerve palsy and was referred to their hospital. Magnetic resonance imaging revealed a cystic lesion in the left Meckel's cave and prepontine cistern, but her symptoms gradually improved during conservative observation. However, three years later she complained of left facial pain in the territory of the second branch of the trigeminal nerve. The left oculomotor nerve palsy exacerbated again. Although her trigeminal neuralgia improved after carbamazepine administration, her oculomotor nerve palsy did not recover. Therefore, she underwent direct surgery through the anterior transpetrosal approach, and the fat-containing tumor cyst was completely resected. The tumor was strongly compressing the left trigeminal nerve and its ganglion in Meckel's cave. After surgery, her facial pain completely resolved and her oculomotor nerve palsy gradually improved. Histological examination revealed that the cyst wall was composed of a single layer of squamous epithelium and contained hair and keratin. A pathological diagnosis of a dermoid cyst was made.
authors.affiliation: Department of Neurosurgery, Graduate School of Medicine and Pharmaceutical Sciences, University of Toyama.
authors.forename: Nozomu
authors.initials: N
authors.lastname: Tanabe
authors.forename: Takahiro
authors.initials: T
authors.lastname: Tomita
authors.forename: Shoichi
authors.initials: S
authors.lastname: Nagai
authors.forename: Naoya
authors.initials: N
authors.lastname: Kuwayama
authors.forename: Kyo
authors.initials: K
authors.lastname: Noguchi
authors.forename: Satoshi
authors.initials: S
authors.lastname: Kuroda
mesh_terms: D003884:Dermoid Cyst / Q000150:complications / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D019635:Neurosurgical Procedures; D015840:Oculomotor Nerve Diseases / Q000000981:diagnostic imaging* / Q000209:etiology; D014277:Trigeminal Neuralgia / Q000000981:diagnostic imaging* / Q000209:etiology