Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2
➤ Gửi thông báo lỗi ⚠️ Báo cáo tài liệu vi phạmNội dung chi tiết: Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2
Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2
SECTION u SPINALIMAGING974CHAPTER 20Brachial PlexusInflammatory and Infectious PlexitisKey FactsViral and idiopathic plexitis:•These are predominantly Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2y sensory and have an insidious onset.•Most patients are between 30 and 70 years of age (uncommon in the very young).•Most resolve spontaneously in 8 to 12 weeks after their onset.•Other causes include: drug reaction (allergic), post viral (autoimmune), due to a vasculitis and a heredofamilial type. Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2•Main differential diagnosis: perineural tumor spread, post radiation changes, stretching injury, hypertrophic polyneuropathy, lymphoma, chronic inflaEbook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2
mmatory7 demyelinating polyneuropathy, thoracic outlet syndrome.Radialion-induced plexitis:•Generally occurs with doses >6,000 cGy•In the acute type, SECTION u SPINALIMAGING974CHAPTER 20Brachial PlexusInflammatory and Infectious PlexitisKey FactsViral and idiopathic plexitis:•These are predominantly Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2ment), symptoms are transient and usually reversible.•Most radiation-induced plexopathies are predominantly sensory.•Diffuse thickening and enhancement of the brachial plexus may be indistinguishable from metastases and follow up is needed to rule out975progression, viral plexitis and chronic inflam Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2matory' demyelinating polyneuropathy may have a similar appearance.FIGURE 20-1. Coronal fat suppressed T2 shows thickening and increased signal in theEbook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2
roots and trunks of the left brachial plexus due to a herpes zoster infection.976FIGURE 20-2. Coronal fat suppressed T2, in a different patient, showSECTION u SPINALIMAGING974CHAPTER 20Brachial PlexusInflammatory and Infectious PlexitisKey FactsViral and idiopathic plexitis:•These are predominantly Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2ppressed T2 in a different patient with diffuse (presumably drug-induced) plexopathy shows diffuse thickening and increased signal in the brachial plexus bilaterally.978FIGURE 20-4. Coronal post contrast T1 shows increased signal intensity from the left infraclavicular brachial plexus (arrow) in a p Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2atient post ipsilateral mastectomy and radiation therapy.FIGURE 20-5. Corresponding coronal fat suppressed T2 shows increased signal (arrow) in the abEbook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2
normal brachial plexus.SUGGESTED READINGSChhabra A, Thawait GK. Soldatos T, et al. High-resolution 3T MR neurography of (he brachial plexus and its brSECTION u SPINALIMAGING974CHAPTER 20Brachial PlexusInflammatory and Infectious PlexitisKey FactsViral and idiopathic plexitis:•These are predominantly Ebook Neuroradiology companion - Methods, guidelines, and imaging fundamentals (5/E): Part 2tic and nontraumatic causes. AJR Am J Roentgenol 2014;202:W67-W75.Traumatic Brachial Plexus InjuriesSECTION u SPINALIMAGING974CHAPTER 20Brachial PlexusInflammatory and Infectious PlexitisKey FactsViral and idiopathic plexitis:•These are predominantlyGọi ngay
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