What are possible nail findings in lung disease?
| Nail abnormality | Definition | Associated condition |
| Koilonychia | Transverse and longitudinal concavity – giving a spoon shaped nail | Iron deficiency anaemia |
| Onycholysis | Separation of nail plate from nail bed, leaving a white discolouration. | Sarcoidosis, ankylosing spondylitis |
| Yellow Nail | Slow growingnail, with‘heaped up’ appearance. The lunula disappears and the nail shows a yellow hue. | Pleural effusion, bronchiectasis |
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