title: Meningioma presenting as an intraoral mass in a patient with neurofibromatosis type 1.
abstract: A 77-year-old woman with neurofibromatosis type 1 presented with ill-fitting dentures due to intraoral extension of a right temporal fossa mass. Computed tomographic scanning demonstrated that the masticator space mass bowed the zygomatic arch and remodeled the lateral orbit and maxillary sinus walls, findings that were consistent with the clinical diagnosis of a neurofibroma with possible malignant transformation. However, light microscopic, immunohistochemical, and ultrastructural examination of tissue from an incisional biopsy specimen were diagnostic of meningioma. This case illustrates that the clinicopathologic differential diagnosis of an enlarging mass in patient with neurofibromatosis should include sporadic, unrelated neoplasms as well as tumors known to be associated with the syndrome.
authors.affiliation: Lauren V. Ackerman Laboratory of Surgical Pathology, Washington University Medical Center, St. Louis, MO 63110-1093, USA.
authors.forename: J D
authors.initials: JD
authors.lastname: Pfeifer
authors.forename: D
authors.initials: D
authors.lastname: Ashley Hill
authors.forename: C V
authors.initials: CV
authors.lastname: Ramos
authors.forename: I I
authors.initials: II
authors.lastname: Wippold FJ
authors.forename: L P
authors.initials: LP
authors.lastname: Dehner
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure; D008579:Meningioma / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure; D009062:Mouth Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery / Q000648:ultrastructure; D009456:Neurofibromatosis 1 / Q000473:pathology*; D010166:Palliative Care; D014057:Tomography, X-Ray Computed