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María Elena Sánchez-Castellanos, MD; Cecilia Sandoval-Tress, MD; Patricia Ramírez-Bárcena, MD
Instituto Dermatológico de Jalisco "Dr. José Barba Rubio," Jalisco, Mexico (Drs Sánchez-Castellanos and Ramírez-Bárcena). Dr Sandoval-Tress is in private practice in Jalisco.

Arch Dermatol. 2007;143(9):1234.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Subungual exostosis is an outgrowth of normal bone or calcified cartilaginous remains characterized by the triad of pain, nail dystrophy, and characteristic radiographic features.

Case 1 involves a 13-year-old boy who presented with a 12-month history of an enlarging and painful lesion localized on the dorsum of the right great toe that appeared after a trauma. Physical examination revealed the presence of a flesh-colored, well-circumscribed elevation that measured 2.0 x 1.5 cm that caused onycholysis of the affected nail (Figure 1A).

Figure appears in full text version. Figure 1.

In case 2, a 17-year-old boy presented with a 4-year history of an asymptomatic growth localized on the third right toe. Physical examination revealed an erythematous, well-defined growth that measured 1.5 x 1.0 cm that caused onycholysis of the affected nail (Figure 2A).

Figure appears in full text version. Figure 2.

In both cases, clinical diagnosis of subungual exostosis . . . [Full Text of this Article]