我科收治三名慢性砷中毒患者,在院外被长期误诊,现报道如下: 例1,周××,男,42岁,住院号1230,因双上肢疼痛,麻木,肌肉萎缩三年入院。 患者自1981年开始逐渐出现双上肢疼痛、发麻、诸关节肿痛,今年以来加重,两上肢肌肉萎缩、无力,生活不能自理。查体:右肘、腕,左腕关节肿胀,活动受限,左上肢不能伸直,肌力Ⅳ度, We treated three patients with chronic arsenic poisoning, long-term misdiagnosis outside the hospital, are reported as follows: Example 1, Zhou × ×, male, 42 years old, hospital 1230, due to upper extremity pain, numbness, muscle atrophy three years to hospital. Patients began to appear in 1981 double upper extremity pain, numbness, joint swelling and pain, increased this year, both upper extremity muscle atrophy, weakness, life can not take care of themselves. Physical examination: right elbow, wrist, left wrist swelling, limited mobility, left upper limb can not be straightened, muscle strength Ⅳ,