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3. Soto R, Wortsman X, Corredoira Y. Onychomatricoma: clinical and sonographic findings. Arch Dermatol. 2009;145:1461-1462.

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7. Rashid RM, Swan J. Onychomatricoma: benign sporadic nail lesion or much more? Dermatol Online J. 2006;12:4.

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12. Perrin C, Baran R, Pisani A, et al. The onychomatricoma: additional histologic criteria and immunohistochemical study. Am J Dermatopathol. 2002;24:199-203.

13. Perrin C, Baran R, Balaguer T, et al. Onychomatricoma: new clinical and histological features. a review of 19 tumors. Am J Dermatopathol. 2010;32:1-8.

14. Perrin C, Langbein L, Schweizer J, et al. Onychomatricoma in the light of the microanatomy of the normal nail unit. Am J Dermatopathol. 2011;33:131-139.

Michael D. Cabana, MD, MPH

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