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  • Title: Fibrocartilaginous embolism: a rare cause leading to spinal cord infarction?
    Author: Ciceri EF, Opancina V, Pellegrino C, Scarabelli A, Botturi AG, Bersano A, D'arrigo S, Erbetta A, Chiapparini L.
    Journal: Neurol Sci; 2023 Jan; 44(1):263-271. PubMed ID: 36114979.
    Abstract:
    PURPOSE: Fibrocartilaginous nucleus pulposus components herniation and embolism rarely causes acute ischaemic events involving the spinal cord. Few reports have suggested this as a mechanism leading to anterior spinal artery syndrome. The purpose of this study was to evaluate the topography and pattern of this rare myelopathy by MRI. METHODS: A retrospective observational case series of patients, admitted to our Institute between 2008 and 2021, with a diagnosis of fibrocartilaginous embolism based on typical clinical and radiological features. RESULTS: Five patients were identified (2 men and 3 women; range 13-38 years). No one had pre-existing vascular risk factors. All referred potential precipitating event in the 24 h prior to symptom onset. MRI findings showed increased signal intensity of the spinal cord on T2-weighted images in all cases and degenerative disc changes opposite to it in four of them. The outcome was poor: three showed only partial sensitivity and motor improvement (mRs 4, 3, and 2, respectively); one completely recovered except for isolated hand paresis (mRs 1); and one remained severely neurologically affected (mRs 5). CONCLUSIONS: Fibrocartilaginous embolism must be a differential diagnosis in case of otherwise unexplained spinal cord infarction in adult and paediatric low risk population. Neuroradiological findings such as abnormal spinal cord signal intensity and degenerative disc changes can aid in early diagnosis of this rare myelopathy. The prevalent myelopathy location was thoracic. All signal alterations were detected in the anterior region of the spinal cord in the territories of the anterior spinal artery.
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