title: CT and MRI appearances of primary sphenoid melanoma: a rare case.
abstract: Primary sphenoid melanoma is a rare tumor. A 75-year-old man presented with complaints of headache and visual complaints for a few days. CT and MRI of the brain demonstrated a sphenoid sinus mass with appearances suggesting a diagnosis of melanoma. Fine-needle aspiration biopsy confirmed the diagnosis. Other differential diagnostic considerations on CT and MRI are discussed. We also discuss the further role of contrast MRI in determining the actual extent of the tumor in the critical skull base area.
authors.affiliation: Department of Radiology, Drexel University College of Medicine, Hahnemann University Hospital, Philadelphia, PA 19102, USA.
authors.forename: Kiran
authors.initials: K
authors.lastname: Batra
authors.forename: Avneesh
authors.initials: A
authors.lastname: Chhabra
authors.forename: Jaideep
authors.initials: J
authors.lastname: Rampure
authors.forename: Shangguio
authors.initials: S
authors.lastname: Tang
authors.forename: Robert
authors.initials: R
authors.lastname: Koenigsberg
authors.forename: Carlos
authors.initials: C
authors.lastname: Gonzales
mesh_terms: D000368:Aged; D001706:Biopsy; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008545:Melanoma / Q000000981:diagnostic imaging* / Q000473:pathology; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D013101:Sphenoid Sinus / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed