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Malignant triton tumor in a patient with neurofibromatosis type 1

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Abstract

We report a case of neurofibromatosis type 1 (NF1) complicated by a malignant triton tumor (MTT), with an emphasis on B-mode sonographic (US) and contrast-enhanced US (CEUS) findings. To the best of our knowledge, this is the first report describing CEUS findings of MTT. The mass was poorly demarcated and composed of an internal echogenic area and an outer hypoechoic zone. CEUS findings showed the outer zone to be strongly enhanced, and the internal area was very poor in blood flow because of necrotic tissues.

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Authors and Affiliations

  1. Department of Internal Medicine, Yokote Municipal Hospital, 5-31 Negishi-Cho, Yokote, Akita, 013-8602, Japan

    Hiroko Naganuma, Masato Funaoka & Shusei Fujimori

  2. Department of Surgery, Yokote Municipal Hospital, Akita, Japan

    Hiroshi Yoshioka

  3. Department of Radiology, Yokote Municipal Hospital, Akita, Japan

    Hiroko Hirano

  4. Center of Diagnostic Ultrasound, Akita Red Cross Hospital, Akita, Japan

    Hideaki Ishida, Tomoya Komatsuda & Mamiko Yamada

  5. Department of Pathology, Akita University School of Medicine, Akita, Japan

    Yuji Nishikawa

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  1. Hiroko Naganuma
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  2. Masato Funaoka
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  3. Shusei Fujimori
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  4. Hiroshi Yoshioka
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Correspondence to Hiroko Naganuma.

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Naganuma, H., Funaoka, M., Fujimori, S. et al. Malignant triton tumor in a patient with neurofibromatosis type 1. J Med Ultrasonics 34, 107–111 (2007). https://doi.org/10.1007/s10396-007-0138-y

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  • DOI: https://doi.org/10.1007/s10396-007-0138-y

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