Hereditary β2-microglobulin amyloidosis with prominent gastrointestinal symptoms and autonomic dysfunction:a case report
|更新时间:2026-10-27
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Hereditary β2-microglobulin amyloidosis with prominent gastrointestinal symptoms and autonomic dysfunction:a case report
Journal of Chongqing Medical UniversityPages: 1-7(2026)
作者机构:
1.中南大学湘雅二医院神经内科,长沙 410011
2.中南大学湘雅二医院医学遗传科/湖南省遗传性出生缺陷与罕见病 临床研究中心,长沙 410011
作者简介:
基金信息:
DOI:
CLC:R747
Received:12 June 2026,
Revised:2026-08-28,
Accepted:07 September 2026,
Published:27 October 2026
稿件说明:
移动端阅览
Chen Liangjing,Zhang Hainan,Wang Chunyu,et al.Hereditary β2-microglobulin amyloidosis with prominent gastrointestinal symptoms and autonomic dysfunction:a case report[J].Journal of Chongqing Medical University,
DOI:
Chen Liangjing,Zhang Hainan,Wang Chunyu,et al.Hereditary β2-microglobulin amyloidosis with prominent gastrointestinal symptoms and autonomic dysfunction:a case report[J].Journal of Chongqing Medical University,DOI:10.13406/j.cnki.cyxb..
Hereditary β2-microglobulin amyloidosis with prominent gastrointestinal symptoms and autonomic dysfunction:a case report
To investigate the clinical characteristics,diagnostic process,and key points for differential diagnosis of hereditary β2-microglobulin amyloidosis.
Methods
2
The clinical data of a patient with hereditary β2-microglobulin amyloidosis were retrospectively analyzed. The clinical manifestations,auxiliary examination findings,diagnostic process,and genetic testing results were systematically summarized and discussed in conjunction with relevant literature.
Results
2
The patient initially presented with progressively worsening gastrointestinal dysfunction,accompanied by prominent autonomic dysfunction mainly manifested as orthostatic hypotension and abnormalities in urination and defecation,together with peripheral nerve involvement characterized by numbness and sensory impairment of the extremities. Genetic testing ultimately identified a pathogenic variant in the
B2M
gene,confirming the diagnosis of hereditary β2-microglobulin amyloidosis.
Conclusion
2
Hereditary β2-microglobulin amyloidosis is a clinically rare entity with an insidious onset and multisystem involvement,rendering it susceptible to misdiagnosis or missed diagnosis. For patients predominantly presenting with progressive gastrointestinal dysfunction accompanied by autonomic disturbances such as orthostatic hypotension,clinicians should be alert to the possibility of hereditary β2-microglobulin amyloidosis. Early genetic testing may facilitate the early diagnosis and standardized management of the disease.
关键词
Keywords
references
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