原发性甲状旁腺机能亢进症常首先累及骨骼系统,表现广泛骨关节疼痛和功能障碍,如不加辨别很易误诊。本院收治4例,在院外误诊长达1～5年本文拟就本症骨骼表现特征及误诊原因特分析讨论如下。例1 女,36岁。从1980年2月起双膝关节疼 Primary hyperparathyroidism often first involving the skeletal system, showing extensive bone and joint pain and dysfunction, such as without discrimination is easy to misdiagnosis. The hospital admitted in 4 cases, misdiagnosed outside the hospital for up to 1 to 5 years This article is intended to characterize the characteristics of the disease and the reasons for misdiagnosis analysis discussed below. Example 1 Female, 36 years old. From February 1980 since the knee pain