2020
DOI: 10.1007/s00256-020-03556-z
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Imaging of non-neurogenic peripheral nerve malignancy—a case series and systematic review

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Cited by 7 publications
(3 citation statements)
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“…The results showed that approximately 7% of PNMs are non-neurogenic, that metastasis is the most common cause (63%), and that the most common site is lumbosacral plexus/sciatic nerve. A helpful MRI feature for the differentiation of neurogenic from non-neurogenic PNMs is the absence of target signs as well as other typical signs frequently observed in neurogenic tumors; DWI images or FDG-PET are also used for differentiation [15] .…”
Section: Discussionmentioning
confidence: 99%
“…The results showed that approximately 7% of PNMs are non-neurogenic, that metastasis is the most common cause (63%), and that the most common site is lumbosacral plexus/sciatic nerve. A helpful MRI feature for the differentiation of neurogenic from non-neurogenic PNMs is the absence of target signs as well as other typical signs frequently observed in neurogenic tumors; DWI images or FDG-PET are also used for differentiation [15] .…”
Section: Discussionmentioning
confidence: 99%
“…Again, no necrosis or rapid growth will be present, and the ADC of the tumor is over 1.1 mm 2 /s [19]. NS-RADS N3 (probably malignant) is a tumor in continuity with or abutting the nerve with suspicious signs of malignancy, including myxoid change, peritumoral edema, necrosis, hemorrhage, heterogeneous enhancement, and rapid growth, and the ADC of the tumor should be less than 1.1 mm 2 /s [24][25][26]. Regional muscle denervation change may be present.…”
Section: Ns-rads Subclassesmentioning
confidence: 99%
“…As detailed earlier, functional MRN is valuable for detecting features suspicious for diagnosing a malignant PNST. 46,47 The malignant tumors are often large (> 4 cm) at diagnosis, may demonstrate local infiltration into adjacent tissues, foci of necrosis, foci of increased cellularity (low ADCmin < 1.0 Â 10 À3 mm 2 /s), extracapsular extension, and rapid interval growth. 48 Benign PNSTs include schwannoma, neurofibroma (both localized and diffuse/plexiform types), perineurioma, and hybrid PNSTs (e.g., schwannoma and neurofibroma).…”
Section: Neoplasm (Both Mass and Mass Effect)mentioning
confidence: 99%