title: Novel CT-guided biopsy of isolated perineural spread of adenoid cystic carcinoma along the trigeminal nerve masquerading as chronic trigeminal neuropathy.
abstract: The differential diagnoses for chronic peripheral neuropathy are broad and diagnosing a cause can be challenging. We present a case of isolated perineural spread of adenoid cystic carcinoma to the trigeminal nerve involving skull base foramina and Meckel's cave in the setting of chronic trigeminal neuropathy and no known prior malignancy. Computed tomography-guided core (CT) needle biopsy was needed to arrive at a diagnosis and a novel approach was required to obtain tissue from the trigeminal nerve lesion at foramen ovale.
authors.affiliation: Department of Medical Imaging, St Vincent's Hospital, Melbourne, Victoria, Australia.|Department of Interventional Radiology, St Vincent's Hospital, Melbourne, Victoria, Australia.
authors.forename: Xian Zhang Eric
authors.initials: XZ
authors.lastname: Yong
authors.affiliation: Department of Medical Imaging, St Vincent's Hospital, Melbourne, Victoria, Australia.
authors.forename: Jonathan
authors.initials: J
authors.lastname: Dillon
authors.affiliation: Department of Neurosurgery, St Vincent's Hospital, Melbourne, Victoria, Australia.
authors.forename: Paul
authors.initials: P
authors.lastname: Smith
authors.affiliation: Department of Pathology, St Vincent's Hospital, Melbourne, Victoria, Australia.
authors.forename: Cesar
authors.initials: C
authors.lastname: Salinas-La Rosa
authors.affiliation: Department of Medical Imaging, St Vincent's Hospital, Melbourne, Victoria, Australia.|Department of Interventional Radiology, St Vincent's Hospital, Melbourne, Victoria, Australia.
authors.forename: Ashu
authors.initials: A
authors.lastname: Jhamb
mesh_terms: D000368:Aged; D003528:Carcinoma, Adenoid Cystic / Q000000981:diagnostic imaging / Q000473:pathology*; D002908:Chronic Disease; D003937:Diagnosis, Differential; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D061705:Image-Guided Biopsy / Q000379:methods; D015641:Radiography, Interventional; D014057:Tomography, X-Ray Computed; D014276:Trigeminal Nerve / Q000000981:diagnostic imaging* / Q000473:pathology; D020433:Trigeminal Nerve Diseases
keywords: adenoid cystic carcinoma; neoplasms; peripheral neuropathy; trigeminal nerve diseases