LAUSR

© BMJ Publishing Group Limited 2022. No commercial reuse. See rights and permissions. Published by BMJ. DESCRIPTION A woman in her 30s came with complaints of whitecoloured lesions on the left side of her face and multiple browncoloured lesions on the face, neck and back for 1 year. Lesions were insidious in onset and gradually progressive and not associated with itching or pain. There was no history of trauma, family history of similar lesions or topical application of any products on the area. On examination, multiple hypopigmented macules and patches were seen on the glabella, cheek and upper lip region on the left side of the face, suggestive of segmental vitiligo (SV) (figure 1). Lesions were seen under Wood’s lamp as chalky white fluorescence (figure 2). Hyperpigmented patch with linear atrophy on palpation was seen on the left side of the forehead and hyperpigmented patches with interspersed hypopigmented macules with atrophic and shiny skin seen on the left side of the neck, left scapula and infrascapular region, suggestive of linear scleroderma (figure 1). Vitiligo of the segmental type affects a particular segment of the body characteristically demarcated at the midline. Autoimmune diseases are less commonly associated with SV, compared with vitiligo vulgaris, but certain skin conditions which follow a linear pattern, such as linear morphea, have often been reported to be associated with SV. Most