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Histologic sections of the hematoxylin-eosin–stained biopsy specimen showed an acanthotic epidermis with overlying orthokeratosis and parakeratosis. A dense lichenoid infiltrate was associated with epidermal basal vacuolar changes and scattered apoptotic keratinocytes. There was also a superficial and deep perivascular and perieccrine lymphohistiocytic infiltrate. A periodic acid–Schiff stain failed to reveal fungal organisms. The combined histologic findings and clinical appearance was that of lichen striatus.
Linear Pruritic Eruption With Onychodystrophy in a 1-Year-Old Girl—Diagnosis. Arch Dermatol. 2009;145(9):1053–1058. doi:10.1001/archdermatol.2009.185-b
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