诊断的dysferlinopathy被一个叠加的甲状腺功能低下肌病症掩盖
Kieran W Benn1, Oneil G Bhalala2, Timothy J Day3
1Department of Medicine, The University of Melbourne, Melbourne, Victoria, Australia.
BMJ case reports
|August 17, 2024
概括
这一案例突出了罕见的功能障碍症诊断,这种诊断被甲状腺功能低下症掩盖. 常规免疫组织化学和基因检测对于复杂肌肉病的病例至关重要,以避免误诊.
科学领域:
- 神经学 神经学
- 内分泌学 在内分泌学.
- 遗传学 遗传学 是一个
背景情况:
- 脊髓功能障碍症具有多样化的临床特征,使得诊断具有挑战性.
- 甲状腺功能低下症可以模仿或掩盖潜在的神经病变,使差异诊断复杂化.
- 精确诊断罕见的神经肌肉疾病对于适当的患者管理至关重要.
研究的目的:
- 报告一个因并发性甲状腺功能低下症而被误诊的异线症病例.
- 强调诊断挑战和复杂肌肉病的具体调查的重要性.
- 倡导将免疫组织化学和遗传检测纳入诊断工作中.
主要方法:
- 一个30多岁的女性,怀疑患有肌肉病的临床病例介绍.
- 实验室调查,包括血清肌酸激酶 (CK) 水平.
- 电肌图,神经传导研究,以及部和大腿的MRI.
- 肌肉活检与免疫组织化学 (IHC) 染色用于dysferlin.
- 甲状腺功能低下症和自身免疫性甲状腺炎的诊断工作.
主要成果:
- 最初的呈现表明甲状腺功能低下的肌肉病变,与明显升高的CK水平 (6255U/L).
- 甲状腺素治疗没有缓解症状或使CK水平正常化.
- 肌肉活检的IHC染色揭示了选择性缺失的dysferlin.
- 肢体-腰带肌肉缩症IIB类型的诊断得到证实.
结论:
- 叠加的甲状腺功能低下症可以掩盖潜在的功能障碍症,导致诊断延迟.
- 针对dysferlin的免疫组织化学和遗传检测对于诊断dysferlinopathy至关重要.
- 对于复杂肌肉病的病例,先进诊断测试的低门是必要的.
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