Dermoscopy of circumscribed acral hypokeratosis

Abstract:

A 68-year-old woman presented with an asymptomatic plantar lesion that had evolved over 10 years. On physical examination, a 1.5-cm erythematous patch on the plantar medial arch was seen with evident irregular and scaling edges (Figure 1A). Dermoscopy showed a stair-step desquamation at the periphery of the lesion and dotted vessels with a diffuse erythematous background scattered with white dots in linear arrangement on the ridges. In addition, several rosettes were observed on the ridges (Figure 1B). Histopathology showed stairlike thinning of the horny layer towards the center, protrusion of acrosyringeal corneocytes, and hypogranulosis under the hypokeratotic area. Furthermore, dilated congestive capillaries were present in the papillary and reticular dermis (Figure 1C). This lesion was successfully treated with surgical excision.

Año de publicación:

2021

Keywords:

Fuente:

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