
<b>Nerve</b>
 
Radiation-induced neuropathy has affected the phrenic nerve [diaphragm dysfunction] and vagus nerve [vocal cord paralysis] as well as the brachial nerve plexus [pain and changes in movement and feeling of the arm]. Other more subtle damage to the nerves may occur without being recognized as late radiation injury. Symptoms appeared 7 months to 25 years after irradiation. Tumor recurrence or metastasis has to be eliminated as a cause for these symptoms. 