职业性外照射慢性放射病是指放射工作人员在较长时间内连续或间断受到超剂量当量的外照射 ,达到一定累积剂量后引起的以造血组织损伤为主并伴有其他系统改变的全身性疾病。本文就医用诊断Ｘ射线工作人员外照射慢性放射病一例报告如下。1　职业接触史患者孙某 ,男 ,5 3岁 ,已婚 Occupational external irradiation Chronic radiation sickness refers to radiation workers over a long period of time by continuous or intermittent overdosage of external radiation, to a certain cumulative dose caused by hematopoietic tissue damage associated with systemic changes in other systemic diseases . This article on the medical diagnosis of X-ray workers outside the case of chronic radiation sickness reported as follows. A history of occupational exposure Sun Mou, male, 5 3 years old, married