A Retrospective Analysis of High Resolution Ultrasound Evaluation of the “Split Fat Sign” in Peripheral Nerve Sheath Tumors
Jeena B. Deka,
Ritu Shah,
Miguel Jiménez
et al.
Abstract:Peripheral nerve sheath tumors (PNST) comprise schwannomas and neurofibromas. The finding of increased adipose tissue around benign PNSTs has been described as the “split fat sign” on magnetic resonance imaging exams, which is suggestive of an intramuscular or intermuscular location of the tumor. However, few studies have described this sign as a salient ultrasound feature of PNSTs. The main purpose of this study was to retrospectively evaluate the presence of increased fatty tissue deposition around benign PN… Show more
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