Acta dermatovenerologica Croatica : ADC
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Beau lines are transverse, band-like depressions extending from one lateral edge of the nail to the other and affecting all nails at corresponding levels (1). Onychomadesis is considered an extreme form of Beau line with subsequent separation of the proximal nail plate from the nail bed. Both fall along a spectrum of nail plate abnormalities that occur secondary to temporary nail matrix arrest (NMA). ⋯ Furthermore, diclofenac is a widely prescribed drug and its association with NMA is yet to be described in literature. We described a patient who developed Beau lines and onychomadesis following cutaneous leukocytoclastic vasculitis. This clinical observation can expand the spectrum of possible causes of nail matrix arrest.