title: Scalp pilomatrix carcinoma as an extra-axial mass.
abstract: We report the CT, MRI, and angiographic findings in a case of pilomatrix carcinoma that had invaded the temporal bone and presented itself as an extra-axial mass. Even though bone destruction was better shown with CT, the tumor mass with its meningeal and tentorial extension was seen more clearly with MRI. The arteriogram demonstrated a unique vascular supply from the external carotid artery.
authors.affiliation: Department of Radiology, University of Alabama School of Medicine, Birmingham 35233.
authors.forename: K S
authors.initials: KS
authors.lastname: Vanexan
authors.forename: T
authors.initials: T
authors.lastname: el Gammal
authors.forename: V Y
authors.initials: VY
authors.lastname: Soong
mesh_terms: D006801:Humans; D008297:Male; D008577:Meningeal Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D011859:Radiography; D012535:Scalp / Q000473:pathology*; D012878:Skin Neoplasms / Q000473:pathology*; D012888:Skull Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology / Q000556:secondary*; D013701:Temporal Bone / Q000000981:diagnostic imaging / Q000473:pathology*