From the Victorian Melanoma Service.
Departments of Anatomical Pathology.
Clin Nucl Med. 2021 Jun 1;46(6):e329-e331. doi: 10.1097/RLU.0000000000003534.
We report an unusual case of a 59-year-old man with recurrent right ear melanoma resulting in perineural spread to the right greater auricular nerve. Direct perineural spread to the greater auricular nerve is not commonly reported in melanoma. Our case demonstrates perineural spread along the greater auricular nerve on 18F-FDG PET/CT and MRI. This finding was supported by intraneural invasion noted at the surgical margin of the wide local excision of the right helix melanoma. Resolution of FDG activity and improved MRI appearances of the right greater auricular nerve were seen after immunotherapy treatment.
我们报告了一例不常见的病例，一名 59 岁男性右侧耳部黑色素瘤反复发作，导致右侧耳大神经神经周围播散。黑色素瘤直接向耳大神经的神经周围播散并不常见。我们的病例在 18F-FDG PET/CT 和 MRI 上显示了沿耳大神经的神经周围播散。在右侧螺旋状黑色素瘤广泛切除的手术切缘处发现神经内侵犯，支持这一发现。免疫治疗后，FDG 活性消退，右侧耳大神经的 MRI 表现改善。
