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inflammation of nail matrix (specifically the proximal nail fold, NOT the sides of the nail)
Overgrowth of cuticle
May be normal variant, lichen planus, dermatomyositis or scleroderma
horizontal depression across nail plate caused by transient nail growth arrest
Associated with stressful event: MI, PE, high fever
Lindsay's Nail (half and half nails)
distal half is pink or brown and sharply demarcated from proximal half which is dull and white. Obliterates the lunula
Associated with Liver disease and Uremia/azotemia
paired, narrow horizontal white bands, separated by normal color which remain immobile as the nail grows
Associated with hypoalbuminemia and Nephrotic syndrome
clubbing of nails
Associated with cardiac disease, COPD, pulmonary disease or GI disease
Telangiectatic proximal nail fold
proximal nail fold becomes tortuous and dilated
Associated with Connective tissue diseases (SLE, dermatomyositis)
nail fold hypertrophy/hyperkeratosis
Usually secondary to ingrown nail or irritation
ex. Lister's corn
damage to the nail plate (damage to nail bed, that you can see through the nail plate)
Fills potential space with hematoma (hemorrhage) (can squirt out)
Associated with simple and complex nail bed lacerations, open phalanx fractures
Should be drained if >25% of the visible nail plate or if nail plate is visibly unstable
Type 1 Nail Deformity
Acquired with NORMAL nail morphology
Ungual Labia Inflammation
Against nail plate
Reversible w/out Matrix Modification
Type 2 Nail Deformity
Acquired with ABNORMAL nail morphology
Require matrix modification
No ossesous involvement
absence of one or more nail plates (born this way)
Associated with ichythyosis (scaly fish type)
extra or supernunerary nail plate on a single toe with 1 or more matrices (two nails, one digit)
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