The Value of Nerve Ultrasound to Diagnose and Follow Up the Multifocal Neurolyphomatosis in the Upper Limb---- Case Report and Literature Review

Introduction Neurolymphomatosis (NL) is a rare disease. Ultrasound (US) plays a crucial role in diagnosing and following up the NL.Case Presentation A 59-year-old man was hospitalized with acute pain in the left upper extremity. Ultrasound revealed segmental swelling of multiple nerves around his left elbow with abundant blood flow signals. Contrast-Enhanced Ultrasound (CEUS) showed a rapid, complete and homogenous enhancement in the nerve lesions in the early arterial phase. The NL was confirmed by imaging and flow cytometry, and he accepted chemotherapy. The post-therapeutic ultrasound showed that the nerves in the left upper limb were basically normal. Unfortunately, the patient died of cerebral metastasis in 5 months.Conclusion The nerve US and CEUS can show specific manifestations and provide more diagnostic information about NL.