原发灶不明的胸段硬膜外恶性黑色素瘤。
Thoracic extradural malignant melanoma with unknown primary.
作者信息
Takagi Yasutaka, Yamada Hiroshi, Ebara Hidehumi, Hayashi Hiroyuki, Kidani Satoshi, Okamoto Shunro, Toyooka Kazu, Nanpo Kazuhiro, Kitano Yoshiyuki, Terahata Shintaro, Tsuchiya Hiroyuki
机构信息
Department of Orthopaedic Surgery, Tonami General Hospital, 1-61 Shintomi-cho, Tonami City, Toyama, Japan.
Department of Diagnostic Pathology, Tonami General Hospital, 1-61 Shintomi-cho, Tonami City, Toyama, Japan.
出版信息
BJR Case Rep. 2020 Jul 17;6(4):20200042. doi: 10.1259/bjrcr.20200042. eCollection 2020 Dec 1.
Primary extradural spinal melanoma is a very rare lesion. Here, we report a thoracic extradural malignant melanoma in a 77-year-old male. MRI showed a dorsal spinal extradural tumour at the T6-T8 level. The tumour showed hyperintensity on T1W imaging and mixed hypointensity and hyperintensity on T2W imaging. Gadolinium-enhanced MRI showed high enhancement on the lesion. Information on imaging findings for extradural spinal melanoma appears very limited. We discuss the MRI findings from this case, which can be considered typical of extradural spinal melanoma and review the literature.
原发性硬脊膜外脊髓黑色素瘤是一种非常罕见的病变。在此，我们报告一例77岁男性的胸段硬脊膜外恶性黑色素瘤。磁共振成像（MRI）显示T6 - T8水平的脊髓背侧硬脊膜外肿瘤。该肿瘤在T1加权成像上呈高信号，在T2加权成像上呈低信号与高信号混合。钆增强MRI显示病变有明显强化。关于硬脊膜外脊髓黑色素瘤影像学表现的信息似乎非常有限。我们讨论了该病例的MRI表现，其可被认为是硬脊膜外脊髓黑色素瘤的典型表现，并对文献进行了综述。
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