|
 Muehrcke's lines | Hodkin's lymphoma, renal failure, nephritic syndome, malnutrition |
| Red lunula | Cardiac failure, carbon monoxide poisoning |
| Blue lunula | wilson's disease, argyria |
| Mee's lines | arsenic poisoning, but also caused by other drugs, infections and systemic insults |
| true transverse leukonychia and onycholysis | Raynaud's disease |
| Janesway lesions/splinter hemorrhages | endocarditis |
| thinning, longitudinal ridging, and fissuring of nail plates | lichen planus |
| longitudinal white streakes and notched splitting of free margin of nail | darier disease |
| longitudinal dark blurry strip in 1 nail with spread of pigmentation into soft tissue | subungual malignant melanoma |
| opaque white nail bed, ground glass appearance, terry's nail | cirrhosis |
| half and half nail, dark bed at distal portion of the nail | renal failure |