Campos, Christiane Monteiro Siqueira

Coelho, Fernando Morgadinho Santos

Freitas, Leonardo Furtado

Marussi, Victor Hugo Rocha

Oliveira, Giuliano da Paz Oliveira

Portuguese

Portal de Periódicos da UFRJ

47Revista Brasileira de Neurologia » Volume 54 » Nº 2 » ABR/MAI/JUN 2018IMAGENS EM NEUROLOGIAISOLATED UNILATERAL HYPOGLOSSAL NERVE PALSY CAUSED BY AN ATLANTOAXIAL JOINT SYNOVIAL CYSTPARALISIA ISOLADA UNILATERAL DO NERVO HIPOGLOSSO CAUSADA POR UM CISTO SINOVIAL DA ARTICULAÇÃO ATLANTO-AXIALGiuliano da Paz Oliveira1,2,3, MD, MSc; Leonardo Furtado Freitas4, MD; Victor Hugo Rocha Marussi4, MD; Christiane Monteiro Siqueira Campos4, MD; Fernando Morgadinho Santos Coelho2,3, MD, PhD.1Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil.2Universidade Federal do Piauí, Campus Ministro Reis Velloso, Parnaíba, Brazil.3Departament of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil.4Neuroradiology of Medimagem, Hospital Beneficência Portuguesa de São Paulo, São Paulo, Brazil.Endereço para correspondência: Giuliano da Paz Oliveira, MD, MSc; Department of Neurology and Neurosurgery, Universidade Federal de São Paulo, São Paulo, Brazil, e-mail:  giulianooliveira@hotmail.comFigure 1: Wasting of the right side of the tongue and its deviation to the right on protrusion indicating a right hypoglossal nerve palsy.Figure 2: (A), (B) and (C) post-gadolinium T1 fat saturation in the coronal, axial and sagittal planes; (D) axial 3D-CISS MRI. Right hemitongue fatty degeneration due to atlantoaxial arthrosynovial cyst compression and hypoglossal nerve palsy. A 52-year-old man presented with a 3-month his-tory of occiptal headache, nonprogressive dysarthria and difficulty in chewing.  Physical examination revealed an isolated right hypoglossal nerve (HN) palsy with associa-ted unilateral tongue wasting (figure 1). Brain MRI disclo-sed a lobulated cystic mass originating in the right atlan-toaxial joint, which extended superiorly and insinuated through the ipsilateral hypoglossal canal, with peripheral enhancement (figure 2). The association of atlantoaxial synovial cyst and isolated unilateral compressive HN paralysis is rarely seen1-4. We believe it should be included in the differential diagnosis of isolated unilateral HN palsy.Rev Bras Neurol. 54(2):47-48, 201848 Revista Brasileira de Neurologia » Volume 54 » Nº 2 » ABR/MAI/JUN 2018CONFLICT OF INTERESTThe author declares that there is no conflict of in-terest.REFERENCES:1. Mujic A, Hunn A, Liddell J, Taylor B, Havlat M, Beasley T. Isolated unilateral hypoglossal nerve paralysis caused by na atlanto-occipital joint synovial cyst. J Clin Neurosc 2003;10:492–5.2. Mendes-Araújo L, Rangel C, Domingues RC, et al. Case report: atlantoaxial synovial cyst causing isolated unilateral hypoglossal nerve paralysis. Br J Radiol 2010;83:e35–383. Santín-Amo, JM. Parálisis aislada del nervio hipogloso secundaria a quiste articular atlanto-occipital. Presentación de un caso y revisión de la literatu-ra. Neurocirugía 2010; 21: 322-325.4. Elhammady, MS et al. Isolated unilateral hypoglossal nerve palsy secon-dary to an atlantooccipital joint juxtafacet synovial cyst. J Neurosurg Spine 2009; 10:234–239Oliveira GP, et al.

ISOLATED UNILATERAL HYPOGLOSSAL NERVE PALSY CAUSED BY AN ATLANTOAXIAL JOINT SYNOVIAL CYST

https://revistas.ufrj.br/index.php/rbn/article/download/19298/ISOLATED%20UNILATERAL%20HYPOGLOSSAL%20NERVE%20PALSY%20CAUSED%20BY%20AN%20ATLANTOAXIAL%20JOINT%20SYNOVIAL%20CYST

ISOLATED UNILATERAL HYPOGLOSSAL NERVE PALSY CAUSED BY AN ATLANTOAXIAL JOINT SYNOVIAL CYST

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