Erythematous papular rash after gardening

Abstract

A 51-year-old woman presented with a 2-day history of cutaneous lesions. The lesions were pruritic and they had begun while she was gardening. The patient had no relevant medical history, took no medication and had no history of a previous similar reaction. She had no fever, and was otherwise healthy and well. On physical examination, a localized erythematous papular rash was seen on the patient's right forearm. Dermoscopy showed multiple brown fine lines and red dots (Fig. 1). A biopsy was taken from a lesion. Clinicopathological case ª 2018 British Association of Dermatologists

Dermoscopy of skin parasitoses, bites and stings: a systematic review of the literature

“…demonstrated the presence of setae as brown lines on dermoscopy. Additional findings reported by Vega et al 157 . included dilated capillaries, haemorrhagic spots and abrasions.…”

“…In the larval stage, the caterpillar of processionary moth ( Thaumetopoea species ) produces stinging hairs (urticant setae) that can spread through direct contact or even through wind. These result in pruritic erythematous maculo‐papular to vesicular rash 156,157 . Corral‐Magana et al 156 .…”

“…These result in pruritic erythematous maculo-papular to vesicular rash. 156,157 Corral-Magana et al 156 demonstrated the presence of setae as brown lines on dermoscopy. Additional findings reported by Vega et al 157 included dilated capillaries, haemorrhagic spots and abrasions.…”