
Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Arachnodactyly
Introduction
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
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
Pathological Findings
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Arachnodactyly: Gross, natural color, long fingers
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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
References
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]


