Arachnodactyly
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Arachnodactyly, also known as spider fingers refers to abnormally long and slender fingers. Toes and feet are also usually affected.
Differential Diagnosis of Diseases Associated with Arachnodactyly
In alphabetical order: [1] [2]
- Achard Syndrome
- Homocystinuria
- Lutembacher’s Syndrome
- Marfan’s Syndrome
- MASS Syndrome (heritable disorder involving Mitral valve, Aorta, Skeleton, Skin)
- Spondylocostal Dysostosis
- Van der Hoeve’s Syndrome
Pathological Findings
-
Arachnodactyly: Gross, natural color, long fingers -
Arachnodactyly: Gross, both feet 50 yo f with aortic dissection and mitral valve prolapse extremities suggest Marfan’s syndrome but no cystic aortic lesions
References
[
© 2026 MyEClinic – IFTM Institut für Telematik in der Medizin GmbH