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Congress: ECR25
Poster Number: C-14097
Type: Poster: EPOS Radiologist (educational)
Authorblock: M. Sánchez Martínez, L. Serrano Velasco, V. Vázquez Sáez, J. J. Molina Najas, I. Sánchez Serna, L. Contreras Espejo, P. Ruiz Bernal, P. Alcaraz Pérez, A. G. Jiménez; Murcia/ES
Disclosures:
Marcos Sánchez Martínez: Nothing to disclose
Laura Serrano Velasco: Nothing to disclose
Victoria Vázquez Sáez: Nothing to disclose
José Juan Molina Najas: Nothing to disclose
Irene Sánchez Serna: Nothing to disclose
Lucía Contreras Espejo: Nothing to disclose
Pedro Ruiz Bernal: Nothing to disclose
Pablo Alcaraz Pérez: Nothing to disclose
Alvaro García Jiménez: Nothing to disclose
Keywords: Head and neck, Neuroradiology peripheral nerve, MR, Imaging sequences, Structured reporting, Education and training
Learning objectives The main objectives of this educational review are: To discuss the anatomy of the brachial plexus and its key anatomical landmarks. To provide a reproducible brachial plexus MRI protocol that can be implemented in most clinical settings. To review the main traumatic and non-traumatic pathologies affecting the brachial plexus.
Read more Background Normal anatomy [1-4] [fig 1] The brachial plexus originates from the ventral rami of the C5-T1 spinal nerves. [fig 2] Within the interscalene triangle, we can detect three trunks (upper, middle and lower). The upper trunk forms by the union of the C5 and C6 roots, the middle trunk is a continuation of the C7 root, while the lower trunk represents the union of the C8 and T1 roots. [fig 3] At the lateral border of the first rib, each trunk separates into an anterior and posterior...
Read more Findings and procedure details Brachial plexopathy can be categorized as either traumatic or nontraumatic. Traumatic cases vary in severity and require imaging for prognosis and surgery decisions. Nontraumatic cases includes neuritis from many factors (radiation, inflammation, infection, metabolic disorders, compression and benign/malignant tumors).Traumatic plexopathies [2, 5-7]Traumatic brachial plexus injuries can be devastating and may result in life-altering functional disability. The location of the injury is crucial for the management. Preganglionic lesions are devastating injuries that are commonly irreparable. In contrast, postganglionic injuries can be...
Read more Conclusion The complexity of the brachial plexus requires a precise understanding of its anatomical components. An optimized MRI protocol is key for the accurate evaluation of the brachial plexus. Traumatic brachial plexus injuries are complex and are divided into pre- and postganglionic types. Non-traumatic brachial plexus pathologies include inflammatory, post-infectious, compressive, or tumor-related causes.
Read more References [1] Torres C, Mailley K, Del Carpio O’Donovan R. MRI of the brachial plexus: modified imaging technique leading to a better characterization of its anatomy and pathology. Neuroradiol J. 2013;26(6):699–719.[2] Gilcrease-Garcia BM, Deshmukh SD, Parsons MS. Anatomy, imaging, and pathologic conditions of the brachial plexus. Radiographics. 2020;40(6):1686–714.[3] Castillo M. Imaging the anatomy of the brachial plexus: review and self-assessment module. AJR Am J Roentgenol. 2005;185(6 Suppl):S196-204.[4] Szaro P, McGrath A, Ciszek B, Geijer M. Magnetic resonance imaging of the brachial...
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