Case Report: The First Reported Case of Bullous Lichen Planus-Systemic Lupus Erythematosus Overlap Syndrome
Yi Liu
Xuelei Liang
Haixuan Wu
Fenglin Zhuo- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
Introduction: Lichen planus/lupus erythematosus overlap syndrome is rarely seen in the clinic and has the characteristic clinical manifestations, histopathology, and immunopathology of lichen planus (LP) and lupus erythematosus (LE). This is the first reported case of bullous lichen planus (BLP)/systemic lupus erythematosus (SLE) overlap syndrome with hair loss as the first symptom.
Case Presentation: A 48-year-old female presented with alopecia for half a year, and skin lesions accompanied by itching on her face, trunk, and limbs for 3 months. She had a history suggestive of photosensitivity. Laboratory tests and histopathology were performed for diagnosis. Histopathologic features of the upper arm and back of the hand were consistent with BLP, whereas the scalp lesion indicated LE. Laboratory examination indicated positive for antinuclear antibody (ANA) (1:160), leukopenia, increased urinary protein, decreased C3/C4, and normal BP180. The patient was given glucocorticoid combined with acitretin and immunosuppressive therapy after a definite diagnosis of BLP/SLE overlap syndrome. The lesions of the patient disappeared and some hair had regrown during the two years of follow-up.
Conclusion: This is the first reported case of BLP/SLE overlap syndrome which responded well to glucocorticoids, retinoids, and immunosuppressive drugs. Multiple biopsies from characteristic lesions will guide doctors to avoid misdiagnoses and delayed treatment.
Introduction
Lichen planus/lupus erythematosus overlap syndrome is a rare disease characterized by clinical manifestations, histopathology, and/or immunopathology, and cannot be explained alone by either lichen planus (LP) or lupus erythematosus (LE) (1). The lesions often involve the distal arms, legs, face, and trunk, and are characterized by painful, centrally atrophic, and bluish red to hypopigmented in color, large, and scaly patches (2). At present, its etiology is unknown although it may be related to autoimmunity, genetic factors, and virus infection. In addition, isoniazid, procaine amide, or other drugs can also induce this disease (3). Bullous lichen planus (BLP) is a subtype of LP, presenting with vesicles or bullae on flat papules or normal skin. This is the first report of a case of BLP/SLE.
Case Report
A 48-year-old female presented with hair loss for half a year, skin lesions, and itching on her face, trunk, and limbs for 3 months. She was admitted to Beijing Friendship Hospital of the Capital Medical University (Beijing, China) in February 2019. Previously, she was diagnosed with folliculitis and eczema with which cetirizine, hydrocortisone, and mupirocin were prescribed but symptoms persisted. The lesions gradually increased accompanied by symmetrical pain of the wrist and knee joints but without swelling, fever, cough, and expectoration. The condition would be worse after sunlight exposure. Prior to onset, she had been in good health and had no history of medical drug use.
A dermatology examination (Figure 1) showed large alopecia patches on the scalp, erythematous plaques on the scalp and face with irregular edges and slight scales on the surface, violaceous lichenoid papules, and blisters on the back of hands and feet with clear boundaries, and papules could be seen on the trunk and arms. The lesions did not involve the mucosa and are without superficial lymphadenopathy and leg edema.
Figure 1. The symptoms of the patient before treatment. (A) Large alopecia patches on the top of the scalp. (B,C) Erythematous plaques on the scalp and face, with irregular edges and slight scales on the surface. (D,E) Violaceous lichenoid papules and blisters can be seen on the back of hands and feet, with clear boundaries. (F,G) Papules could be seen on the trunk and arms.
Laboratory tests for blood showed WBC 3.31 × 109, RBC 3.7 × 1012, HGB 110 g/L. Urine routine was negative with 24-h urine protein quantitation at 248 mg (normal value: 28–141 mg) and ANA: 1:160 (homogeneous spot), 1:80 (cytoplasm), dsDNA (-); C3 37 mg/dl (normal value: 90–180 mg/dl); C4 2.67 mg/dl (normal value: 10–40 mg/dl); IgG 2,040 mg/dl; ESR 58 mm/h; and BP180 was 8 RU/ml (normal value <20 RU/ml). Indirect immunofluorescent assay for IgG, IgA, and C3 were negative (Figure 2). There were no abnormalities in liver and kidney function.
Figure 2. Indirect immunofluorescence of the frozen serum of the patient for IgG, IgA, and C3 was all negative.
Pathological examination (Figure 3) of the scalp showed epidermal atrophy, hair follicle angle plug, liquefaction, and degeneration of basal cells, infiltration around the superficial dermis vessels by a low number of lymphocytes, reduction of appendages, and deposition of a large amount of mucoprotein in the dermis. The scalp pathology and laboratory tests of the patient were in accord with SLE. Pathological examination of the upper arm demonstrated epidermal hyperkeratosis, wedge-shaped thickening of the granular layer, liquefaction of basal cells, zonal infiltration of lymphocytes in the superficial dermis, and formation of epidermal fissures. Pathological examination of the back of the hand showed epidermal hyperkeratosis, wedge-shaped thickening of the granular layer, liquefaction of basal cells, zonal infiltration of lymphocytes in the superficial dermis, and subepidermal blisters. Pathological examination of the upper arm, hand, and back supported the diagnosis of bullous lichen planus. Combined with the history of the patient, skin lesions, laboratory results, and pathological findings, a diagnosis of bullous lichen planus-systemic lupus erythematosus (LP/LE) overlap syndrome was determined.
Figure 3. (A) Pathology of the scalp shows atrophy of the epidermis, hair follicle angle plug, liquefaction, and degeneration of basal cells, low infiltration of lymphocytes around the superficial dermis vessels, reduction of appendages, and deposition of a large amount of mucoprotein in the dermis. (B) Pathology of the upper arm shows hyperkeratosis of the epidermis, wedge-shaped thickening of the granular layer, liquefaction of basal cells, zonal infiltration of lymphocytes in the superficial dermis, and formation of epidermal fissures. (C1,C2) Pathology of the back of the patient's hand shows hyperkeratosis of the epidermis, wedge-shaped thickening of the granular layer, liquefaction of basal cells, zonal infiltration of lymphocytes in the superficial dermis, and subepidermal blisters.
The patient was given hydroxychloroquine sulfate (200 mg, po, bid), prednisone acetate tablets (40 mg, po, qd), topical 0.05% halometasone cream two times a day for her body, and 0.1% tacrolimus cream two times a day for her face. The symptoms showed significant improvement after 2 weeks. Under these conditions, prednisone acetate was decreased to 20 mg daily, acitretin 30 mg daily, and oral methotrexate 10 mg weekly. About 3 weeks later, the hair of the patient had stopped falling out, the joint pain had disappeared, and partial lesions had regressed. The dosages were gradually reduced according to her symptoms. Upon recent follow-up, her symptoms are stable (Figure 4), her skin lesions have disappeared, and there has been some hair regrowth. Her laboratory test results were normal. Currently, the patient has been prescribed hydroxychloroquine sulfate 200 mg daily, acitretin 10 mg daily, and oral methotrexate 2.5 mg weekly.
Figure 4. The symptoms of the patient after 2 years of treatment. A small amount of hair had grown and all skin lesions had disappeared.
Discussion
To date, ~50 cases of LP/LE overlap syndrome have been reported, most of whom are between 25 and 45 years old, with a predominance of women (4). There is controversy about LP/LE overlap syndrome should be an independent diagnosis specifically for the coexistence of LE and LP as it has been reported that patients have separate lesions consistent with each disease. Alternatively, at least one case report showed real overlap in a single lesion (5). Overlap syndrome is characterized by a mixture of clinical and histopathological features of LE and LP. Direct immunofluorescence shows subepidermal spherical deposits of IgM or IgG or granular deposition of immunoglobulin and complement along the dermal-epidermal junction (lupus zone test) (6). To the best of our knowledge, this is the first reported case of BLP/SLE.
Bullous lichen planus is a rare variant of lichen planus. The formation of blisters in BLP might be related to the severe liquefactive degeneration of basal layer cells. According to the 2019 European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) criteria (7), the ANA (1:160) of the current patient and her total score was 16, including chronic cutaneous lupus (four scores), non-scar alopecia (two scores), non-deformed arthritis, or poly-arthritic pain (four scores), WBC < 4 × 109/L (two scores), and decreased C3 and C4 (four scores), indicating a diagnosis of SLE.
In addition, the diagnosis of the current patient should be differentiated from bullous systemic lupus erythematosus (BSLE) and lichen planus pemphigus (LPP). BLSE is a rare blistering disease, occurred in patients with systemic lupus erythematosus, predominantly in young women. Its clinical characteristics are tension blisters or bullae located on erythema or normal skin, mainly in the trunk, upper limbs, and face (8). Histologically, it showed perivasculitis in the whole layer of the dermis, forming subepidermal blisters within neutrophils infiltrating. Direct immunofluorescence showed linear or granular deposition of IgG, IgA, IgM, and/or C3 in the basement membrane (9). In the current cases, the histological feature around both sides of blisters is hypergranulosis, irregular acanthosis (refer to yellow arrows in Figures 3B,C2). Meanwhile, only superficial dermal vasculitis without neutrophil or leukocyte fragmentation vasculitis was found. Although direct immunofluorescence of skin lesions in this patient is lacking, the histological manifestation met the diagnosis of BLP. Therefore, BSLE was not considered.
Lichen planus pemphigus is a rare and unique autoimmune disease. It is characterized by subepidermal blisters in both lesion and non-lesion LP areas, mainly involving the limbs. The diagnosis depends on clinical, histopathological, and serological results (10). Its histological features are similar to both simple lichen planus and bullous pemphigoid (BP) with the infiltration of most eosinophils and, sometimes, obvious eosinophilic sponge edema. Direct immunofluorescence revealed anti-basement membrane antibodies. In most cases, ELISA showed positive anti BP180 antibody (>20 RU/ml) (11–13). For this patient, no eosinophils infiltration was found in her skin histological examination, the supplementary BP180 was negative (8 RU/ml) and indirect immunofluorescence assay of the frozen serum of the patient for IgG, IgA, and C3 were all negative, which were not consistent with LPP.
Lichen planus/lupus erythematosus overlap syndrome has no standard treatment. However, some patients are resistant to glucocorticoids. Successful treatment of bullous lichen planus with acitretin monotherapy was reported in 2016 (14). In the current case, the patient was resistant to prednisone acetate. The symptoms of the patient were controlled well after adding acitretin and immunosuppressive medicines. Effective treatments for LP/LE overlap syndrome include glucocorticoids combined with hydroxychloroquine, acitretin, thalidomide, cyclosporin, methotrexate, local tacrolimus, and corticosteroids (15–17).
Bullous lichen planus/systemic lupus erythematosus overlap syndrome has the characteristics of BLP and SLE regarding its clinical manifestations, histopathology, and immunopathology. Skin lesions in different areas have specific characteristics that can be confirmed by skin pathology examination. Therefore, clinicians should take multiple samples from different areas containing characteristic lesions to prevent misdiagnosis and delayed treatment.
Conclusion
This is the first case of BLP/SLE overlap syndrome. The patient recovered well after receiving glucocorticoids in combination with immunosuppressive therapy. Clinicians should take multiple biopsies from the characteristic lesions.
Data Availability Statement
The original contributions presented in the study are included in the article/Supplementary Material, further inquiries can be directed to the corresponding author.
Ethics Statement
Written informed consent was obtained from the individual(s) for the publication of any potentially identifiable images or data included in this article.
Author Contributions
FZ diagnosis and treatment of patients and put forward ideas. YL consulted literature and wrote articles. HW followed up patients and collected photos. XL arranged the pathological pictures. All authors contributed to the article and approved the submitted version.
Funding
This work was supported by grants from the National Natural Science Foundation of China (No. 81301385).
Conflict of Interest
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
Publisher's Note
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Supplementary Material
The Supplementary Material for this article can be found online at: https://www.frontiersin.org/articles/10.3389/fmed.2021.744592/full#supplementary-material
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Keywords: bullous lichen planus, systemic lupus erythematosus, overlap syndrome, case report, alopecia
Citation: Liu Y, Liang X, Wu H and Zhuo F (2021) Case Report: The First Reported Case of Bullous Lichen Planus-Systemic Lupus Erythematosus Overlap Syndrome. Front. Med. 8:744592. doi: 10.3389/fmed.2021.744592
Received: 20 July 2021; Accepted: 04 October 2021;
Published: 04 November 2021.
Edited by:
Andreas Recke, University of Lübeck, GermanyReviewed by:
Artem Vorobyev, University Medical Center Schleswig-Holstein, GermanyKentaro Izumi, Hokkaido University, Japan
Copyright © 2021 Liu, Liang, Wu and Zhuo. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence: Fenglin Zhuo, zflsunny@hotmail.com