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Linear and annular lupus panniculitis of the scalp
Corresponding author: Prof. Dingquan Yang, Department of Dermatology, China-Japan Friendship Hospital, Chaoyang District, Beijing, China. ydqlx@163.com
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How to cite this article: Wu R, Yang Z, Yang D. Linear and annular lupus panniculitis of the scalp. Indian J Dermatol Venereol Leprol. doi: 10.25259/IJDVL_276_2024
A 32-year-old man presented with a two-year history of annular alopecia of the scalp [Figure 1]. Hair loss was initially focal but gradually enlarged in an annular pattern. Trichoscopy revealed dystrophic hair, mild erythema, and perifollicular white scales [Figure 2]. Physical, laboratory, mycological examination and hair pull test results were unremarkable. A skin biopsy was conducted from the erythematous rim of the alopecic patch. Histopathology showed moderate lymphocytic infiltration, mainly in the deep dermis and subcutis, with hyaline fat necrosis [Figure 3]. Linear and annular lupus panniculitis of the scalp was diagnosed based on the clinicopathological features. Complete hair regrowth was achieved after glucocorticoid and hydroxychloroquine treatment.
- Annular alopecia and mild erythema on the scalp.
- Trichoscopy showed dystrophic hairs (red arrow), mild erythema (blue arrow), and perifollicular white scales (green circle) (Beining, polarised light, ×20).
- Lymphocyte-based infiltration in the fat lobules with abundant mucin deposition (Haematoxylin and eosin, 200x).
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Use of artificial intelligence (AI)-assisted technology for manuscript preparation
The authors confirm that no artificial intelligence (AI)-assisted technology was used to assist in the writing or editing of the manuscript, and no images were manipulated using AI.
