Successful treatment of Morbihan disease with total glucosides of paeony: A case

Li-Feng Zhou,Rong Lu

Abstract

Key Words: Morbihan disease; Morbihan syndrome; Total glucosides of paeony; Prednisone acetate; Tripterygium wilfordii; Case report

lNTRODUCTlON

Morbihan disease, also known as Morbihan syndrome, is a rare skin disease named by Gorinet al[1] in 1991, with only a few sporadic cases reported worldwide. The main clinical manifestations are edema and erythema of the upper two-thirds of the face without obvious discomfort. Development of the disease can cause malformation and visual field defects, affecting patients’ quality of life[2]. Therefore, early diagnosis and treatment are of great significance. Currently, there is no standard treatment for Morbihan disease. We describe a 55-year-old female patient who received total glucosides of paeony for this rare disease with good efficacy and no adverse reactions.

CASE PRESENTATlON

Chief complaints

A 55-year-old female patient presented to our Department of Dermatology with non-pitting edema and erythema of the upper two-thirds of the face for 5 mo.

History of present illness

The patient had edema and erythema of the upper two-thirds of the face 5 mo ago, and there was no itching or discomfort related to the skin lesions. The patient had previously been treated in two hospitals, where the doctors considered her condition considered to be caused by an allergy and treated her with antihistamines, but this treatment was ineffective. The primary skin lesions gradually became worse.

History of past illness

The patient was previously healthy and denied any history of acne, rosacea, erysipelas, allergies, diabetes, or other diseases.

Personal and family history

The patient denied genetic diseases, and there was no similar disease in the family.

Physical examination

On physical examination, temperature, pulse, respiration, and blood pressure were normal. Examination of the heart, lungs, abdomen, and nervous system showed no abnormalities. Dermatological findings showed obvious edema and erythema on the forehead, between the eyebrows, and on both eyelids, nose, and both cheeks. The skin lesions were hard and non-pitting, and had unclear boundaries and obvious infiltration by touch (Figure 1A). The rest of the skin showed no abnormalities. No visual field damage was observed.

Figure 1 Facial lesions of the patient with Morbihan disease. A: Non-pitting edema and erythema of the upper two-thirds of the face; B: The lesions disappeared completely after 4 mo of treatment with total glucosides of paeony capsules, and follow-up of almost 1 yr showed no recurrence.

Laboratory examinations

Routine blood tests, renal function, and electrolytes were all within the normal range. Routine urine test showed positive occult blood (1+), and other values were normal. The tuberculin test, antinuclear antibody spectrum, and anti-double stranded DNA antibody were negative. All immunological indicators were normal. Liver function analysis showed that alanine aminotransferase (ALA) was 44 U/L, and other values were normal. Histopathological examination of skin lesions on the left side of the face revealed mild hyperkeratosis of the epidermis, nodular inflammatory lesions in the dermis, epithelioid granuloma, and inflammatory cell infiltration dominated by lymphocytes and histiocytes around skin appendages and blood vessels (Figure 2A-C). Alcian blue staining, acid fast staining, silver staining, and periodic acid-Schiff (PAS) staining were all negative (Figure 2D-G).

Imaging examinations

A chest X-ray showed no abnormalities.

FlNAL DlAGNOSlS

The patient was diagnosed with Morbihan disease.

TREATMENT

Facial edema was significantly reduced after treatment with prednisone acetate tablets 20 mg/d for 1 mo. When prednisone acetate was reduced to 10 mg/d for 2 mo, facial edema increased. Prednisone acetate was discontinued, and tripterygium wilfordii polyglycoside tablets were prescribed at 6 tablets/d. After 4 mo of this treatment, facial edema was slightly relieved. Liver function examination showed that ALA was 73 U/L and aspartate aminotransferase (ASA) was 56 U/L, both of which were higher than the values before treatment. Elevated aminotransferase was found to be caused by tripterygium wilfordii polyglycoside, thus oral liver-protecting compound glycyrrhizin at 225 mg/d was initiated. After 1 mo of treatment, facial edema did not significantly improve, and liver function reexamination showed that ALA (86 U/L) and ASA (62 U/L) levels were still high. Therefore, oral administration of tripterygium wilfordii polyglycoside and compound glycyrrhizin was discontinued, and total glucosides of paeony capsules at 0.6 g 3 times/day were prescribed. After 1 mo of treatment, facial edema was significantly reduced. Liver function reexamination showed that ALA was 69 U/L and ASA was 58 U/L, both of which were decreased. After another mo of treatment with total glucosides of paeony capsules, liver function reexamination showed that ALA was 47.31 U/L and ASA was 37.35 U/L, both of which returned to normal and facial edema was further alleviated. After subsequent 2 mo of maintenance treatment with total glucosides of paeony capsules, facial edema completely disappeared (Figure 1B), and liver function indexes returned to normal.

Figure 2 Histopathology of the patient's facial skin lesions. A-C: Hyperkeratosis of the epidermis, nodular inflammatory lesions in the dermis, epithelioid granuloma, and inflammatory infiltrating cells dominated by lymphocytes and histiocytes around skin appendages and blood vessels (HE staining A: × 4; B: × 20; C: × 40); D: Negative for Alcian blue staining (× 20); E: Negative for acid fast staining (× 20); F: Negative for silver staining (× 20); G: Negative for periodic acid-Schiff staining (× 20).

OUTCOME AND FOLLOW-UP

Facial edema disappeared completely after 4 mo of treatment with total glucosides of paeony. The patient was followed for almost 1 year and was in good physical condition without facial edema.

DlSCUSSlON

The specific potential cause of Morbihan disease is unclear, and some scholars believe that it is a rare complication of acne[3]. Some researchers suggest that it is related to rosacea[4,5], and its pathogenesis may be related to chronic inflammation, which affects lymphatic reflux and leads to local skin edema[6]. Recent studies have suggested that edema may be associated with non-insulin-dependent diabetes mellitus[7,8]. Our patient had no history of acne, rosacea, or diabetes, and the specific cause of the disease was unclear.

The histopathology of this disease is mainly non-specific inflammation, which is manifested by telangiectasis and infiltration of inflammatory cells such as lymphocytes around hair follicles and blood vessels[9], and granulomatous tissue can also be seen in a few cases[2]. The histopathological findings of the skin lesions in the present patient were nodular inflammatory lesions in the dermis, epithelioid granuloma, and inflammatory cell infiltration dominated by lymphocytes and histiocytes around skin appendages and blood vessels. This is consistent with the existing case reports of Morbihan disease[4,10-12].

This disease should be distinguished from angioedema, dermatomyositis, lupus erythematosus, chronic actinic dermatitis, skin tuberculosis, and sarcoidosis. The present patient had no history of allergy or family inheritance. The skin lesions showed infiltrating edema, which did not subside within a short time, and pruritus was not observed. Eosinophils were not increased, and antihistamine treatment was ineffective, which excluded angioedema. The patient had no violet erythema on the eyelids, no fatigue, no muscle soreness, no specific Gottron papules on the dorsal joints of the limbs, and no immunological positive indicators, and histopathology did not show liquefaction degeneration of basal cells or mucin deposition in the dermis, which excluded dermatomyositis. The patient's skin lesions were not butterfly erythema, without hair follicle horn plug and adherent scales, without light sensitivity, and with no abnormal immunological indicators and no mucin deposition in the dermis, which ruled out lupus erythematosus. The patient had no mossy lesions, no pruritus, no history of longterm outdoor exposure, and no light sensitivity; therefore, chronic actinic dermatitis was ruled out. The tuberculin test was negative, and lung examination showed no abnormalities; acid-fast staining, silver staining, and PAS staining were negative, and histopathology showed no caseous necrosis, thus excluding skin tuberculosis. The patient's lung was normal and histopathological findings showed no tuberous granuloma; therefore, sarcoidosis was ruled out. The patient presented with chronic nonpitting edema of the upper two-thirds of the face and no pruritus in the edematous area. Histopathology showed non-specific inflammation, and the final diagnosis was Morbihan disease.

In terms of the treatment of Morbihan disease, a review of the existing literature showed that most cases were treated with glucocorticoids and tetracycline antibiotics[10], and thalidomide treatment has also been reported[13]. The latest report shows that good results were achieved with isotretinoic acid combined with ketotifen for the treatment of Morbihan disease[14]. Glucocorticoids, tetracycline antibiotics, thalidomide, and isotretinoic acid agents have been reported to have direct or indirect antiinflammatory effects, indicating that anti-inflammation is a very important treatment in this disease. The histopathological findings of nonspecific inflammation in Morbihan disease seem to support this.

Existing treatment methods for Morbihan disease have shortcomings such as long treatment cycle, disease recurrence after drug withdrawal, and multiple side effects. In the present case, the patient was treated with a glucocorticoid in the early stage, and inflammation was controlled within a short period. However, the disease recurred after reduction of the hormone, indicating that it is difficult to achieve a complete cure with only anti-inflammatory treatment. In addition to anti-inflammatory treatment, it is necessary to eliminate the initial factors causing inflammation. The clinical characteristics of this disease include chronic recurrence. Isotretinoic acid treatment of this disease has achieved good results, and analysis has found that isotretinoic acid has both anti-inflammatory and immunomodulatory effects, suggesting that inflammation in this disease may be related to immunity. The major disadvantages of isotretinoic acid are the occurrence of adverse reactions after long-term use, and patient’s poor tolerance. There are reported cases of tripterygium wilfordii treatment achieving good results[15]. Our patient also received tripterygium wilfordii treatment, but developed elevated transaminase levels during treatment, and finally had to terminate tripterygium wilfordii. Therefore, it was necessary to identify an effective drug with few side effects.

Total glucosides of paeony is a Chinese patent medicine, which is extracted fromRadix paeoniae albaand have anti-inflammatory[16], anti-organ injury[17], and immune regulation effects[18]. Total glucosides of paeony was approved by the China Food and Drug Administration for the treatment of rheumatoid arthritis in 1998, and its clinical therapeutic effect is remarkable[19]. In addition, total glucosides of paeony has been shown to be effective in the treatment of psoriasis[20], Sjogren's syndrome[21], and other autoimmune diseases. Studies have shown that total glucosides of paeony combined with other drugs has obvious advantages in treating autoimmune diseases, which can significantly alleviate the symptoms of patients and reduce the side effects of drugs. Some researchers used total glucosides of paeony combined with methotrexate (MTX) and leflunomide in the treatment of rheumatoid arthritis, which significantly reduced the toxic effect on the liver[22]. Fenget al[23] used total glucosides of paeony combined with MTX in the treatment of rheumatoid arthritis, and its efficacy was superior to that of MTX alone[23]. It has been shown that total glucosides of paeony plays an important role in multiple processes of autoimmune diseases, and inhibits the maturation of dendritic cells by selectively blocking the activation of the TLR4/5 signaling pathway in order to avoid immunemediated inflammation[24]. In view of the significant effect of total glucosides of paeony on chronic inflammatory autoimmune diseases, the patient in this report was treated with total glucosides of paeony capsules, and the effect was obvious with no adverse reactions, and there was no recurrence after almost 1 year of drug withdrawal. The adverse reactions of total glucosides of paeony are rare, and the reported adverse reactions are only mild diarrhea[25]. According to the literature, diarrhea is the most likely adverse reaction of total glucosides of paeony in the treatment of Morbihan disease.

The pathophysiological mechanism of Morbihan disease is not fully understood. There is a relatively consistent view among researchers that edema in Morbihan disease is mainly caused by lymphatic obstruction or poor lymphatic return due to inflammation[26]. Studies have shown that the nitric oxide signaling pathway may be involved in the destruction of the integrity of lymphatic vessels[7], and total glucosides of paeony can effectively inhibit the production of nitric oxide and other inflammatory factors in macrophages in the rheumatoid arthritis model[27], and can play an anti-inflammatory role by inhibiting the activation and recruitment of inflammatory cells[28]. Therefore, it is speculated that the mechanism of total glucosides of paeony in the treatment of Morbihan disease is to maintain the integrity of lymphatic vessels and prevent the occurrence of edema through the similar anti-inflammatory mechanism mentioned above.

Morbihan disease is rare, and only one case has been reported in China to date. Therefore, it is difficult to carry out research on the multi-center large-sample treatment at present. However, the report of an effective treatment strategy in a single case may still be helpful in treating patients with Morbihan disease and in further study of this disease.

CONCLUSlON

Morbihan disease is rare, and no standard treatment is currently available. Reported treatments for Morbihan disease have shortcomings such as long medication cycle, disease recurrence after drug withdrawal, and many side effects. This patient was treated with total glucosides of paeony with good effects and no adverse reactions. The patient was followed for almost 1 year without recurrence, suggesting that total glucoside of paeony is an effective agent for Morbihan disease. To our knowledge, this is the first reported case of Morbihan disease treated with total glucosides of paeony with good results.

ACKNOWLEDGEMENTS

We sincerely thank all the medical staff who were involved in the treatment of this patient.

FOOTNOTES

Author contributions:Zhou LF and Lu R contributed equally to this work; Zhou LF consulted and recorded the patient’s medical history, reviewed the literature, collected the clinical data and images, and wrote the manuscript; Lu R participated in the formulation of the manuscript, literature search, collection of pathological images, image editing, and manuscript modification; all authors approved the final version for submission.

lnformed consent statement:Informed consent was obtained from the patient for the publication of this case report.

Conflict-of-interest statement:All the authors report no relevant conflicts of interest for this article.

CARE Checklist (2016) statement:The authors have read the CARE Checklist (2016), and the manuscript was prepared and revised according to the CARE Checklist (2016).

Open-Access:This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BYNC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is noncommercial. See: https://creativecommons.org/Licenses/by-nc/4.0/

Country/Territory of origin:China

ORClD number:Li-Feng Zhou 0000-0003-0764-4151; Rong Lu 0000-0002-4153-045X.

S-Editor:Fan JR

L-Editor:Wang TQ

P-Editor:Fan JR