冈下肌腱钙化性腱炎

介绍
右肩疼痛和运动受限

患者资料
年龄：40岁
性别：女

MRI

Coronal T1


Coronal T2


Coronal PD fat sat


Coronal STIR


Axial T2


Axial PD fat sat


Sagittal T2


Sagittal PD fat sat

MRI研究表明，在所有脉冲序列中，脉管下肌腱的信号改变伴有肌腱连接，周围肌腱水肿和低信号的小病变，可能是钙化灶

肩锁关节轻度骨关节炎改变

脊椎上肌轻度增厚显示物质内信号轻度改变（在T1和T2中处于中间状态），提示轻度肌腱病

肩峰下/三角肌滑囊中的液体较轻

CT

Coronal bone window


Axial Soft tissue non-contrast


Sagittal bone window

CT检查证实存在与冈下肌腱相关的钙化灶

案例讨论

这是一例相对少见的冈下肌腱钙化性肌腱炎。

钙化性肌腱炎的发生对肩袖的影响如下：

冈上肌：80%
冈下肌：15%
肩胛下肌：5%

钙化性肌腱炎（或钙化性肌腱炎）是一种自限性疾病，由于钙羟基磷灰石沉积在肌腱内，通常是在肩袖。这是一种常见的表现羟基磷灰石晶体沉积病（HADD）。

流行病学

一般情况下，这种情况会影响30到60岁之间的中年患者，对女性有轻微的偏好。

参考资料：
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