PMC9911314_01
(A) Clinical photo of the longitudinal erythronychia; (B) 10x magnification of the longitudinal erythronychia beginning at the lunula of the nail. Magnification of dermoscopy: Dermlite DL4 polarized (Dermlite, San Juan Capistrano, California), 10x
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FIG1
It was approximately 2mm in width on his left first digit, beginning at the level of the lunula and extending to the distal tip of the onychodermal band (Figure 1).
Subungual keratosis at the level of the hyponychium. Magnification of dermoscopy: Dermlite DL4 polarized, 10x
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FIG2
During dermoscopy, a subungual keratosis was discovered at the level of the hyponychium (Figure 2).
(A) H&E staining of longitudinal section of nail unit, low power view (40x); (B) H&E stain, high power (200x); individual cell walls indicative of plant material (wood) are present
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FIG3
Dermatopathology revealed fragments of plant material within the dermis beneath the nail bed consistent with a wooden splinter, suggesting that the LE was secondary to a prominent splinter (Figure 3).