title: [Solid as a rock].
abstract: A 42-year-old patient presented with a 7-year history of a slowly enlarging mass in the right submandibular area, which has been growing faster for the last 6 month. Apart from that there were no other symptoms. Physical examination and a magnetic resonance imaging (MRI) scan did not identify the nature of the tumor. A resection of the mass was performed and the surgical specimen was revealed to be a mature teratoma by histology.
authors.affiliation: Hals-Nasen-Ohren-Klinik und Poliklinik, Klinikum rechts der Isar der Technischen Universität, Ismaninger Straße 22, 81675, München, Deutschland.
authors.forename: B
authors.initials: B
authors.lastname: Hofauer
authors.forename: T
authors.initials: T
authors.lastname: Strenger
authors.forename: A
authors.initials: A
authors.lastname: Knopf
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D024862:Oxyphil Cells / Q000473:pathology; D013363:Submandibular Gland / Q000473:pathology / Q000601:surgery; D013365:Submandibular Gland Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D013724:Teratoma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery