title: Osteoma of the frontal sinus complicated by intracranial mucocele.
abstract: We present a rare case of intracranial mucocele associated with frontal sinus osteoma in a patient suffering from generalized convulsion. The intracranial mucocele occurs as a complication of obstruction of sinus drainage caused by osteoma, but it is often diagnosed preoperatively as an intracranial or intracerebral cyst because of the rarity of these combined lesions in neurosurgical practice. However, once the mucocele extends intracranially, several other complications, including infections and/or a convulsion, can occur, indicating the necessity for surgical treatment. Moreover, the differentiation of the mucocele from the intracranial endodermal cyst predominantly depends upon its continuity with the intracranial osteoma portion or the sinus. Thus, knowledge of this rare lesion is important for accurate diagnosis and clinical management.
authors.affiliation: Department of Pathology, Miyazaki Medical College, Miyazaki, Japan. kaznabes@fukuoka-u.ac.jp
authors.forename: Kazuki
authors.initials: K
authors.lastname: Nabeshima
authors.forename: Kousuke
authors.initials: K
authors.lastname: Marutsuka
authors.forename: Yoshiya
authors.initials: Y
authors.lastname: Shimao
authors.forename: Hisao
authors.initials: H
authors.lastname: Uehara
authors.forename: Takao
authors.initials: T
authors.lastname: Kodama
mesh_terms: D001927:Brain Diseases / Q000150:complications / Q000473:pathology* / Q000601:surgery; D005626:Frontal Sinus / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008297:Male; D008875:Middle Aged; D009078:Mucocele / Q000150:complications / Q000473:pathology* / Q000601:surgery; D010016:Osteoma / Q000150:complications / Q000473:pathology* / Q000601:surgery; D010255:Paranasal Sinus Neoplasms / Q000150:complications / Q000473:pathology* / Q000601:surgery; D016896:Treatment Outcome