Multiple mononeuropathy is a rare presentation of primary (AL) amyloidosis and nerve biopsy is usually needed for diagnosis. Conventional imaging is useful to identify proximal nerve involvement but may be inadequate. We report a patient with multiple mononeuropathy whose presentation was suggestive of AL amyloid neuropathy and in whom repeated tissue biopsies were negative for amyloid (including two sensory nerves and one muscle).

中文翻译：

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使用18F-florbetapir PET / MRI的新颖成像技术可指导淀粉样多发性单神经病的束状神经活检

多发性单神经病是原发性（AL）淀粉样变性的罕见表现，诊断通常需要神经活检。常规成像可用于识别近端神经受累，但可能不足。我们报告了一名多发性单神经病患者，其表现提示AL淀粉样蛋白神经病，并且其反复组织活检显示淀粉样蛋白阴性（包括两条感觉神经和一条肌肉）。