title: Giant Aneurysmal Bone Cyst of the Anterior Cranial Fossa and Paranasal Sinuses Presenting in Pregnancy: Case Report and Literature Review.
abstract: Background and Purpose Aneurysmal bone cysts (ABCs) rarely involve the cranium and have seldom been reported in pregnancy. Clinical Presentation We describe a case of a 28-year-old woman who presented at 37 weeks of gestation with 3 months of gradually worsening vision, 10 months of proptosis, and restricted ocular motility on the left. Brain imaging revealed a multicystic enhancing mass measuring 5.9 × 5.3 × 3.7 cm, centered on the cribriform plate on the left, extending into the anterior cranial fossa superiorly as well as the left nasal cavity, maxillary, sphenoid, and frontal sinuses. Her clinical course is described in detail; 3-month postoperative imaging demonstrated no residual mass. Conclusion A literature review revealed five previous cases of ABCs associated with pregnancy. We report a rare case of a giant ABC of fibrous dysplasia involving the paranasal sinuses and anterior cranial fossa. We postulate on the possible influence of pregnancy on the clinical course.
authors.affiliation: Departments of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, United States.
authors.forename: Luke
authors.initials: L
authors.lastname: Hnenny
authors.affiliation: Departments of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, United States.
authors.forename: Neil
authors.initials: N
authors.lastname: Roundy
authors.affiliation: Departments of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, United States.
authors.forename: Victor
authors.initials: V
authors.lastname: Zherebitskiy
authors.affiliation: Department of Pathology, Oregon Health & Science University, Portland, Oregon, United States.
authors.forename: Marjorie
authors.initials: M
authors.lastname: Grafe
authors.affiliation: Department of Pathology, Oregon Health & Science University, Portland, Oregon, United States.
authors.forename: Atiya
authors.initials: A
authors.lastname: Mansoor
authors.affiliation: Departments of Neurological Surgery, Oregon Health & Science University, Portland, Oregon, United States.
authors.forename: Aclan
authors.initials: A
authors.lastname: Dogan
keywords: aneurysmal bone cyst; pregnancy; skull base