Cicatricial Pemphigoid of the Oropharynx after Allogeneic Stem Cell Transplantation for Relapsed Follicular Lymphoma

A 44-year-old woman with refractory follicular lymphoma underwent allogeneic stem cell transplantation (SCT) and achieved complete remission. Grade III acute graft-versus-host disease (GVHD) developed on day 23, but no chronic GVHD occurred. The patient developed severe erosion with bullous lesions in the oral cavity 18 months after SCT. At that time, the lymphoma remained in complete remission, and she had no clinical or laboratory findings suggesting chronic GVHD. A biopsy of the oral mucosa showed moderate lymphoplasmacytic infiltration and subepidermal bullae, and direct immunofluorescence staining demonstrated linear deposition of C3 at the dermo-epidermal junction. An immunoblotting assay using human epidermal extracts confirmed the presence in her serum of an antibody against the 230-kd bullous pemphigoid antigen 1 (BPAG1). A diagnosis of cicatricial pemphigoid (CP) was made, and complete resolution of the CP was achieved with pred-nisolone therapy. The occurrence of autoimmune blistering diseases is rare after allogeneic SCT.     

六例结节性类天疱疮临床和实验室检查特点

目的 探讨6例结节性类天疱疮临床表现和实验室检查特征。方法 回顾性分析2016年1月至2019年8月北京协和医院皮肤科住院部6例结节性类天疱疮患者临床资料。结果 结节性类天疱疮主要发生于中老年人,平均发病年龄(58±16)岁。4例嗜酸性粒细胞升高,5例进行了免疫球蛋白E(IgE)检测,均升高,平均(530±672) KU/L。直接免疫荧光均提示基底膜带IgG和/或C3沉积,间接免疫荧光示抗基底膜带IgG抗体阳性,滴度1:40~1:320。5例患者抗BP180阳性[(24~85)U/ml,平均 (43±26) U/ml],未合并中枢神经系统疾病。6例患者中1例失访,5例可随访的患者中3例出现复发,2例仍口服激素维持治疗。结论 结节性类天疱疮发病年龄相对较轻,嗜酸性粒细胞和总IgE升高,抗BP180抗体滴度低,容易复发但合并神经系统疾病较少。     

糖尿病性大疱病40例治疗临床分析

目的：探讨糖尿病性大疱病临床治疗方法。方法：将临床诊断的糖尿病性大疱病40例病人分为两组：治疗组使用前列腺素E1^100μg静脉注射1次／日,并用注射器抽尽水疱内液,〉1cm的大疱内注入碘伏;对照组使用复方丹参注射液40m1静脉滴注,并用注射器抽尽水疱内液,予胰岛素外敷并包扎。两组均予以抗感染、降糖、全身并发症等相应治疗,共治疗2w。结果：治疗组治愈天数较对照组明显缩短,差异明显（P〈O．05）。结论：对糖尿病性大疱病患者进行前列腺素E1^100μg静脉注射1次／日,并用注射器抽尽水疱内液,然后注入碘伏入疱内治疗有明显疗效。     

Correlations between tear fluid and aqueous humor cytokine levels in bullous keratopathy

PurposeTo evaluate the correlation between tear fluid and aqueous humor (AqH) cytokine levels in eyes with bullous keratopathy (BK) and with normal endothelium.MethodsThis prospective consecutive case-series study included 71 eyes of 71 patients: 31 eyes with BK, 18 eyes with non-BK corneal diseases, and 22 eyes with uncomplicated cataract (healthy controls). Total protein and cytokine (interleukin [IL]-1α, IL-1β, IL-4, IL-6, IL-8, IL-10, MIP-1α, MIP-1β, monocyte chemotactic protein [MCP]-1, E-selectin, P-selectin, soluble intercellular adhesion molecule [sICAM]-1, and IP-10) levels in the tear fluid and AqH were measured using multiplex beads immunoassay. The correlations between tear and AqH cytokine levels were assessed.ResultsThe AqH protein level was significantly higher in BK eyes (1.09 ± 0.08 mg/mL) than in non-BK (0.63 ± 0.11, P = 0.0004) and healthy control (0.62 ± 0.06, P = 0.0002) eyes. The tear total protein and IL-4 levels were significantly higher in the BK group compared to healthy controls (P = 0.0374 and 0.0032, respectively). The AqH IL-8 and sICAM-1 levels were significantly higher in the BK group compared to controls (P = 0.0001 and 0.0083, respectively). In BK eyes, the tear IL-4 level was significantly correlated with the MCP-1(r = 0.563, P = 0.001) and total protein (r = 0.589, P = 0.001) AqH levels. The tear IL-8 level was significantly correlated with the MCP-1(r = 0.598, p = 0.001) and IL-4 (r = 0.781, p < 0.0001) AqH levels in BK eyes. However, no significant correlations were found between tear and AqH cytokine levels in non-BK and healthy controls eyes.ConclusionsThe tear cytokine levels are correlated with those of AqH only in BK, but not in non-BK and healthy controls.     

A Stab‐and‐Roll Biopsy Technique to Maintain Gingival Epithelium for Desquamative Gingivitis

Background: Desquamative gingivitis (DG) is a clinical manifestation common to several diseases. It is known that most cases of DG are caused by mucous membrane pemphigoid (MMP), oral lichen planus (OLP), or pemphigus vulgaris (PV). Early recognition and treatment of these diseases can improve the prognosis, but diagnostic delays are common in patients with DG because obtaining a diagnostic biopsy is technically challenging. A biopsy technique designed to maintain the gingival epithelium for patients with DG was developed. The usefulness of this technique is discussed. Methods: This study is based on a retrospective review of 27 DG cases. A stab‐and‐roll technique was used to obtain gingival tissue. This technique is designed to reduce lateral forces on the epithelium during the procedure and to thereby prevent the inadvertent removal of the epithelium from the biopsy specimen. A total of 52 biopsies comprising 27 for hematoxylin and eosin (H&E)–stained samples and 25 for direct immunofluorescence (DIF) testing were reviewed. Results: Fifty‐one of the 52 biopsies (98.1%) maintained the epithelium. Only one biopsy (1.9%) showed that the epithelium was totally absent. Therefore, H&E and DIF features of 51 biopsies were analyzed. Definitive diagnoses of the diseases causing DG included MMP (13 cases), PV (eight cases), and OLP (six cases). Conclusions: A diagnostic biopsy was obtained from the gingiva of patients with DG using the stab‐and‐roll technique. The gingival epithelium was well maintained, and the relationship with the underlying connective tissue was diagnostic. In the future, this stab‐and‐roll biopsy technique may facilitate early diagnosis and treatment of diseases causing DG.     

Asociación entre penfigoide ampolloso e inhibidores de la dipeptidilpeptidasa-4: estudio de cohortes retrospectivo

BackgroundThe association between dipeptidyl peptidase 4 inhibitors (DPP-4i) and bullous pemphigoid (BP) has been demonstrated in several studies. The main aim of this study was to estimate the use of DPP-4i treatment in patients diagnosed with BP in our setting.MethodsWe selected patients histologically diagnosed with BP in our department between October 2015 and October 2018 and performed a retrospective chart review to assess clinical and epidemiological data and direct immunofluorescence (DIF) patterns.ResultsOf the 70 patients diagnosed with BP during the study period, 50% were diabetic and 88.57% of these were being treated with a DPP-4i when diagnosed with BP. The most common DPP-4i was linagliptin (used in 18.6% of patients), followed by vildagliptin (17.1%). The median latency period between initiation of DPP-4i treatment and diagnosis of BP was 27.5 months for all treatments, 16 months for linagliptin, and 39 months for vildagliptin (log rank < 0.01). A negative DIF result was significantly more common in patients not being treated with a DPP-4i. The DIF pattern most strongly (and significantly) associated with DPP-4i treatment was linear immunoglobulin G deposits along the dermal-epidermal junction. DPP-4i treatment was withdrawn in 87% of patients and 96% of these achieved a complete response.ConclusionsDPP-4i treatment is very common in patients with BP in our setting. The latency period between start of treatment and onset of BP seems to be shorter with linagliptin than with other types of gliptins. Patients receiving DPP-4i treatment may show different DIF patterns to those not receiving treatment.     

大疱性类天疱疮患者血清中抗BP180抗体水平检测及意义的分析

目的研究23例大疱性类天疱疮(BP)患者血清中抗BP180抗体的表达水平和治疗前后的变化及抗体指数与病情严重程度的相关关系,以探讨抗BP180抗体水平在BP患者的诊断、监测病情变化及治疗中的应用。方法对23例患者通过病理及直接免疫荧光进行诊断,并对患者的病情进行评估,应用酶联免疫吸附试验(ELISA)法检测患者及20例正常人血清中抗BP180抗体的水平,最后通过统计分析判断各指标间的关系及意义。结果23例患者血清经ELISA检测抗BP180抗体阳性18例;治疗后的抗BP180抗体指数(67.94±54.73)较治疗前(74.22±59.06)下降,治疗前与治疗后的差值为3.66±12.71,差异有统计学意义(P<0.05);治疗前后抗BP180抗体指数均与病情评分有相关性(治疗前r=0.417,P<0.05;治疗后r=0.818,P<0.01)。20例正常对照组阳性1例,阴性19例。ELISA检测BP血清抗BP180抗体的灵敏度为78.26%,特异性为95%。结论BP患者血清中抗BP180抗体水平与疾病的严重程度有一定的相关性,有较高的灵敏度和特异性,可作为BP的常规辅助诊断,并用于监测病情变化及指导治疗。