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. 2022 Aug;47(8):1490-1501.
doi: 10.1111/ced.15190. Epub 2022 May 23.

Clinicohistological and immunopathological features of patients with cutaneous lupus erythematosus at tertiary dermatology centre in Malaysia

Yeon Chiat Teh  1 , Chai Har Loo  1 , Norazlima Mohd Ali  1 , Ai Lee Lim  2 , Wooi Chiang Tan  1
Affiliations

Clinicohistological and immunopathological features of patients with cutaneous lupus erythematosus at tertiary dermatology centre in Malaysia

Yeon Chiat Teh et al. Clin Exp Dermatol. 2022 Aug.

Abstract

Background: Cutaneous lupus erythematosus (CLE) is a chronic, autoimmune skin disease with a wide spectrum of clinical presentations in different populations.

Aim: To study the clinicohistological and immunological features of CLE in a multiethnic population and to identify the predictive factors of disease severity based on the Cutaneous Lupus Erythematosus Disease Area and Severity Index (CLASI).

Methods: This was a cross-sectional study of CLE conducted from March 2019 to February 2020.

Results: In total, 111 patients were recruited with a female/male ratio of 4.9 : 1. Acute CLE contributed 47.7%, followed by chronic CLE at 46.9% and subacute CLE at 5.4%. A large majority (84%) of patients had systemic lupus erythematosus. Of patients with chronic CLE, about 67.3% developed systemic involvement. Antinuclear antibody (ANA) was detected in 90.0%. Skin biopsy was taken from 42 patients and showed perivascular lymphocytic infiltration (95.2%), epidermal atrophy (47.6%) and hydropic degeneration of the basal layer (47.6%). Immunoglobulin deposition at the dermoepidermal junction was seen in > 40% of patients, predominantly in a granular pattern. Mean CLASI Total was 6.44 ± 7.70, while CLASI Activity (CLASI-A) was 2.75 ± 4.10 and CLASI Damage (CLASI-D) was 3.71 ± 4.76. Involved body surface area (BSA) was found to be an independent predictive factor for CLASI-A (OR = 1.34, P < 0.02). For CLASI-D, positive predictive factors were involved BSA (OR = 4.14, P < 0.001), discoid lupus erythematosus subtype (OR = 13.10, P = 0.001), cutaneous vascular disease (OR = 26.59; P = 0.014), scalp involvement (OR = 8.7, P < 0.01) and hypocomplementaemia (OR = 5.71, P < 0.5). Mean Dermatology Life Quality Index was 5.91 ± 5.34 and correlated significantly with disease severity.

Conclusions: We observed a high percentage of patients with CLE with systemic manifestations and positive ANA result. More aggressive treatment of patients with positive predictive factors for severe disease combined with significant clinical activity may be warranted.

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