同时的TTR和AL Amyloidosis:诊断挑战和临床影响
Karan Wats1, Rajshekhar Chakraborty2, Mariela Navarro-Torres3
1Division of Cardiology, Department of Medicine, Columbia University Irving Medical Center, New York, New York, USA.
这一案例凸显了区分跨氨酸粉症 (TTR) 和轻链粉症 (AL) 的诊断挑战,特别是当非侵入性发现异常时. 组织诊断和质谱对于准确的鉴定至关重要.
科学领域:
- 心脏病学
- 肝脏病学
- 病理学
背景情况:
- 这种病常常会影响心脏.
- 区分TTR和轻链amyloidosis可能是复杂的.
- 不典型的表现需要彻底的诊断评估.
研究的目的:
- 报告一个罕见的同时存在的TTR心脏粉症和限AL卡帕粉症.
- 强调在区分粉样性粉症亚型的诊断挑战.
- 强调在复杂病例中确定组织诊断的重要性.
主要方法:
- 用于评估心脏干扰的酸光学.
- 内心肌组织活检以确定心脏粉症的诊断.
- 细胞活检和骨髓评估以确定和全身性粉样性病的特征.
- 用于精确的蛋白质识别的质谱学.
主要成果:
- 患者最初怀疑TTR心脏粉症基于成像.
- 心脏内脏活检证实了TTR的心脏粉症.
- 细胞活检和骨髓评估显示同时发生的,局限的AL kappa粉症.
- 质谱测试证实了TTR和AL粉体沉积物.
结论:
- 这一案例说明了区分TTR和AL粉症的诊断困难,特别是在异常的临床特征下.
- 仅仅通过非侵入性成像检测可能不足以准确诊断.
- 结合质谱的组织活检对于模两可的粉样性病例的确诊至关重要.
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