Linear Focal Elastosis: a case report with a brief literature review: A case report with a brief literature review

Dear Editor, A 14-year-old boy of South East Asian descent (Fitzpatrick skin type III–IV) presented with a 10-month history of persistent, nonpruritic linear streaks on his back (Figure 1a). On examination, he was tall and slender, undergoing a growth spurt, with a body mass index of 18 kg m−2 (weight 54 kg, height 1.74 m). The streaks appeared as several palpable, mildly erythematous horizontal bands without pitting or blanching, predominantly on his lower back, with a few on his mid-back and lateral upper thighs. The thigh streaks were pale white and flat. There was no family history of similar skin conditions. His medical history included allergic rhinitis, asthma and atopic eczema. Dermoscopy revealed 2–3 mm pale white bands interspersed with vertical brown ridges without vascular structures, suggestive of proliferating connective tissue (Figure 1b, c). A biopsy was reported showing an unremarkable epidermis with a mild increase in elastic fibres within the mid-dermis, consistent with the clinical impression of linear focal elastosis (LFE) (Figure 2a, b).