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Tumors at the Supraclavicular Region Tsutomu Akahane 1 , Yukio Nakatsuchi 2 , Tominaga Shimizu 3 , Hiroyuki Kato 4 1Department of Orthopaedic Surgery, Nagano National Hospital 2Department of Orthopaedic Surgery, Marunouchi Hospital 3Shimizu Orthopaedic Clinic 4Department of Orthopaedic Surgery, Shinshu University Keyword: 腕神経叢 , brachial plexus , 神経鞘腫 , schwannoma , MRI pp.861-865
Published Date 2008/9/25
DOI https://doi.org/10.11477/mf.1408101355
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 Objective:We surveyed the clinical symptoms and radiologic features of tumor and tumor-like lesions at the supraclavicular region. Methods:Over a 10-year period, 30 patients with 30 lesions involving the brachial plexus were treated upon. We evaluated the clinical, radiologic, and pathologic features of 15 neural sheath tumors and 15 lesions with non-neural sheath origin. Results:Patients with neural sheath tumor were significantly positive to Tinel's sign (p=0.014) and target sign on MR image (p=1.75×10-5) than patients with non neural sheath tumor. Conclusions:The characteristics of clinical and radiologic findings could differentiate schwannoma from other malignant tumors of brachial plexus. Biopsy is nonetheless recommended, especially when malignancy is suspected because of Tinel's sign and/or target sign on MRI is not a concern.


Copyright © 2008, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1286 印刷版ISSN 0557-0433 医学書院

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