10 Lung Cancer Symptoms
Symptom #8: Nail Clubbing
Nail clubbing or digital clubbing occurs when the nails of the fingers or toes are deformed (usually) due to diseases of the heart and lungs. It can be seen in lung cancer, interstitial lung disease, sarcoidosis, mesothelioma, cyanotic heart disease, tetralogy of Fallot, or any other disease where there is chronic hypoxia.
It has been theorized that nail clubbing occurs due to vasodilation, secretion of growth factors, and other mechanisms have been proposed.
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