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放射性损伤是因高能电离辐射及各种放射性同位素引起的组织损伤,具有迟发性、进行性、不可逆性等特点~([1-2])。在放射治疗或在某些事故中遭受射线照射后出现的相关临床症状,考虑为射线损伤,其生理病理变化程度随接受的放射剂量的增加而加重。虽然放射治疗是对鼻咽癌、颈部淋巴结转移癌的有效方法,但是颈部放射治疗常导致颈部肌肉、血管、神经等重要组织损伤,容易导致局部形成难以自行愈合的溃疡,严重影响颈部的正常活动,
Radiation damage is due to high-energy ionizing radiation and various radioisotope-induced tissue damage, with delayed, progressive, irreversible characteristics ~ ([1-2]). The relevant clinical symptoms after radiotherapy or radiation exposure in some accidents are considered as ray injuries and the extent of their physiological and pathological changes is aggravated with the increase of the accepted radiation dose. Radiation therapy is an effective method for the treatment of NPC and cervical lymph node metastases. However, radiotherapy of the neck often causes damage to important tissues such as the neck muscles, blood vessels and nerves, which easily leads to local formation of ulcers that are difficult to self-heal and seriously affect the neck Ministry of normal activities,