title: Atypical teratoid/rhabdoid tumor arising from the trigeminal nerve in an adult.
abstract: A 30-year-old male presented with left facial pain and numbness. Initial MRI demonstrated an enhancing mass involving the left trigeminal nerve. Follow-up imaging showed interval growth with erosion of the sphenoid body. Surgical resection was performed and immunohistochemistry staining was consistent with an atypical teratoid/rhabdoid tumor. Awareness of this entity and its imaging features such as diffusion restriction, intratumoral hemorrhage, and bony destruction, can help guide confirmatory diagnostic testing and appropriate therapy.
authors.affiliation: Department of Radiology, University of Texas Health Science Center at San Antonio, USA frankfy21@gmail.com.
authors.forename: Fang
authors.initials: F
authors.lastname: Yu
authors.affiliation: Department of Radiology, University of Texas Health Science Center at San Antonio, USA.
authors.forename: Florence
authors.initials: F
authors.lastname: Chiang
authors.affiliation: Department of Radiology, University of Texas Health Science Center at San Antonio, USA.
authors.forename: Carlos
authors.initials: C
authors.lastname: Bazan
mesh_terms: D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D018335:Rhabdoid Tumor / Q000000981:diagnostic imaging / Q000473:pathology*; D014276:Trigeminal Nerve / Q000000981:diagnostic imaging / Q000473:pathology*
keywords: Brain tumor; MRI; cranial nerve involvement