Erythema multiforme, Stevens-Johnson syndrome/toxic epidermal necrolysis - diagnosis and treatment

Comparison of visual diagnostic accuracy of dermatologists practicing in Germany in patients with light skin and skin of color

Visual clinical diagnosis of dermatoses in people of color (PoC) is a considerable challenge in daily clinical practice and a potential cause of misdiagnosis in this patient cohort. The study aimed to determine the difference in visual diagnostic skills of dermatologists practicing in Germany in patients with light skin (Ls) and patients with skin of color (SoC) to identify a potential need for further education. From April to June 2023, German dermatologists were invited to complete an online survey with 24 patient photographs depicting 12 skin diseases on both Ls and SoC. The study's primary outcomes were the number of correctly rated photographs and the participants' self-assessed certainty about the suspected visual diagnosis in Ls compared to SoC. The final analysis included surveys from a total of 129 dermatologists (47.8% female, mean age: 39.5 years). Participants were significantly more likely to correctly identify skin diseases by visual diagnostics in patients with Ls than in patients with SoC (72.1% vs. 52.8%, p ≤ 0.001, OR 2.28). Additionally, they expressed higher confidence in their diagnoses for Ls than for SoC (73.9 vs. 61.7, p ≤ 0.001). Therefore, further specialized training seems necessary to improve clinical care of dermatologic patients with SoC.

A Bayesian Network Meta-Analysis of the Effect of Targeted Therapies on the Total Length of Hospital Stay in Children with Drug-Induced Stevens-Johnson Syndrome/Toxic Epidermal Necrolysis Syndrome

Background: Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are rare potentially life-threatening hypersensitivity disorders characterized by widespread skin and mucosal involvement. However, there is no standardized evidence-based treatment to reduce the complications of SJS/TEN. This article aims to compare the efficacy of different treatments for pediatric SJS/TEN in terms of length of hospital stay (LOS) using a Bayesian network meta-analysis (NMA). A Bayesian NMA is used to compare and combine evidence from multiple studies and allows clinicians to estimate the relative effectiveness of different treatments/interventions while accounting for heterogeneity in the available evidence. Methods: We conducted a comprehensive electronic database search for studies compatible with our inclusion criteria. Six studies with 103 patients were included in the NMA; of them, 37 patients were treated with intravenous immunoglobulin (IVIG), 37 with systemic corticosteroids (CS), 23 with IVIG + CS, and 3 with Etanercept (ET) + CS. Patients with a median age of 10 years were included in the study. Results: CS had the highest probability of being the most optimal treatment for SJS/TEN in terms of shorter LOS based on the Surface Under the Cumulative Ranking curve levels, and CS + IVIG was associated with a statistically nonsignificant trend toward shorter LOS than IVIG alone. Remarkably, none of the treatments showed a significant benefit over the other interventions in terms of LOS. Conclusion: Current evidence suggests that coadministration of CS and IVIG may be associated with a shorter LOS than IVIG alone. Further research with larger randomized controlled trials is needed to reach a definitive conclusion about the efficacy of specific therapy on LOS in pediatric SJS/TEN and to establish more definitive treatment guidelines.

Increased prevalence of erythema multiforme in patients with COVID-19 infection or vaccination

Several reports stated that erythema multiforme (EM) was associated with COVID-19 with detrimental outcomes in patients. However, since most of these are case reports, it is challenging to quantitively assess their associations. Therefore, our study aims to determine the prevalence of EM in the context of COVID-19. The study was designed as a retrospective cross-sectional hospital-based study of registered patients at the University of Florida Health Hospital. The ICD-10 codes for EM, COVID-19 infection, and COVID-19 vaccines were searched in the database. The odds ratio was calculated to assess the risk of EM after COVID-19 infection or vaccination. Our study included 43,547 patients with a history of COVID-19 infection, of whom 92 developed EM. Patients with COVID-19 infection were 6.68 times more likely to have EM than those without COVID-19 (P < 0.0001). Similarly, the risk of developing EM after COVID-19 vaccination was 2.7, significantly higher than the general population (P < 0.0001). The prevalence of EM following COVID-19 infection or vaccination significantly differs from the general population, highlighting the importance of monitoring patients for EM after COVID-19 infection and/or vaccination. It is imperative to disseminate awareness to clinicians and patients regarding the impact of COVID-19 on EM.

Allopurinol-Induced Toxic Epidermal Necrolysis

Toxic epidermal necrolysis (TEN) is a rare and life-threatening cutaneous disease, frequently triggered by drugs. Allopurinol is one of the most frequent drugs associated with TEN, which implies detachment of a significant amount of the body surface area (BSA) and has a high morbidity and mortality associated with it. We present the case of a 68-year-old female with a recent diagnosis of hyperuricemia who started treatment with allopurinol. A week later, she presented to the emergency department with an extensive maculopapular exanthema with blisters and skin detachment. After the exclusion of other etiologies, the diagnosis of allopurinol-induced TEN was made, with 35% of BSA involvement. Due to the severity of the clinical condition, she was admitted to intensive care and treated with corticoids that had no response. So, she was started on immunoglobulins and transferred to a burn unit. She developed sepsis with multiorgan failure and required supportive treatment. She was discharged after a month, and physical rehabilitation was needed. This clinical case highlights the severity of allopurinol hypersensitivity that may happen and the importance of an accurate diagnosis and treatment for this rare disease.

Toxic epidermal necrolysis after injection of sclerosing agent and medical adhesive into oesophageal variceal ligation in a patient with a malignant liver tumour: A case report

Chronic liver disease can cause an increase in portal sinus pressure, which may lead to rupture and bleeding of esophageal and gastric varices. Oesophageal variceal ligation, with use of sclerosing agent and tissue glue injection is commonly used in clinical practice to address oesophageal bleeding. A 58-year-old male patient with chronic liver disease was treated with oesophageal variceal ligation, sclerosing agent and tissue glue injection due to oesophageal and gastric variceal bleeding. After 2 days, the skin of the patient exhibited erythema to different degrees. After 10 days of dexamethasone treatment, the whole-body rash worsened, and a severe skin reaction appeared that was suggestive of toxic epidermal necrolysis (TEN). Strict mucosal care was provided, and corticosteroids, γ globulin and adalimumab were concurrently used for treatment. After 20 days, the patient recovered from the skin problems. To the best of our knowledge, TEN after endoscopic surgery has rarely been reported in the relevant literature. Furthermore, when patients being treated with multiple drugs have erythema multiforme, physicians should be alert to the possibility of its development into TEN. The present case report summarizes the treatment methods for patients with TEN, providing a practical clinical basis and direction for the future diagnosis and treatment of the condition.

Steven-Jonhson Syndrome in a Patient With Dengue Infection in Peru: A Case Report

Stevens-Johnson syndrome is an infrequent condition affecting the skin and mucous membranes, it involves cutaneous detachment with high mortality without adequate treatment. We present the case of a 40-year-old male with a history of epilepsy treated with valproic acid and lamotrigine, previously diagnosed with dengue. Evaluation showed erythematous blisters on skin and mucosa with bleeding and desquamation, covering 10% of the body surface. The patient progressed favorably with the medical care received. Stevens-Johnson syndrome should be studied in association with arboviral diseases.

Oropharyngolaryngeal manifestations in severe toxic epidermal necrolysis: a single-center's retrospective case series

BACKGROUND

Toxic epidermal necrolysis is a rare and life-threatening mucocutaneous disease. Although mucosal ear, nose, and throat (ENT) involvement is common, little is known about the characteristics, treatment modalities, and outcomes of these lesions. The aim of this study was to evaluate ENT mucosal lesions in severe toxic epidermal necrolysis patients and analyze their characteristics, treatment modalities, and outcomes, as well as proposing a management algorithm to prevent long-term debilitating sequalae of these lesions.

METHODS

This is a retrospective review of toxic epidermal necrolysis cases treated at the tertiary burns unit of the Lausanne University Hospital CHUV, Switzerland, between 2006 and 2019.

RESULTS

Out of 19 patients with severe toxic epidermal necrolysis, 17 (89%) underwent a complete ENT examination at admission and 14 (82%) had ENT mucosal involvement. Five (26.3%) patients died during the stay in the intensive care unit. Of the 16 patients who received maximal care, 13 (81%) required orotracheal intubation for a median time of 16 (IQR: 14) days. Out of the 14 patients who survived, four (29%) had long-term ENT complications consisting of synechiaes necessitating subsequent endoscopic procedures. Those four patients all required mechanical ventilation with an orotracheal tube and suffered from hypopharyngeal synechiaes as well as oral and endonasal synechiaes in individual cases.

CONCLUSION

This study suggests a high prevalence of ENT synechiaes in patients with severe toxic epidermal necrolysis and requiring orotracheal intubation. Periodic ENT examination could prevent mature synechiae formation in these patients. We propose an algorithm to prevent long-term sequalae in ENT mucosal involvement.

Immune-mediated oral mucosal pathology: a comprehensive review and update for clinicians. Part I

The oral mucosa can be involved in a wide variety of mucocutaneous conditions that may present primarily in the mouth or affect other cutaneous or mucosal sites. Many of these conditions are immune mediated and typically present as inflammatory mucosal pathology. Patients experiencing such conditions usually seek medical evaluation and treatment due to the associated pain and discomfort and occasionally taste disturbance or dysphagia and the overall deterioration in the oral health-related quality of life. These conditions share some common features and there could be some overlapping in their clinical presentation, which can lead to delays in diagnosis and proper management of patients. Clinicians dealing with such disorders, including dermatologists, need to be aware of the oral manifestations of mucocutaneous conditions, their clinical features, underlying mechanisms, diagnostic approaches, and treatment options, as well as the recent advances in the research on these conditions. This review provides a comprehensive, evidence-based reference for clinicians, with updated insights into a group of immune mediated conditions known to cause oral mucosal pathology. Part one will cover oral lichen planus, erythema multiforme and systemic lupus erythematosus, while part two will cover pemphigus vulgaris and mucous membrane pemphigoid, recurrent aphthous stomatitis, in addition to the less common disorders linear IgA disease, dermatitis herpetiformis and epidermolysis bullosa.

[Skin and SARS-CoV-2 in pediatrics]

The clinical presentation, disease course, and outcome of SARS-CoV-2 infection in pediatrics differ from the presentation in adults. In a review by Hoang et al., the prevalence of dermatological manifestations was estimated in 0.25% of a total of 2,445 children with confirmed COVID-19. Similarly, the prevalence of skin manifestations was reported in 3% of 100 children in the Parri's study. A systematic review by Shah et al. analyzed 13 studies with 149 children who met eligibility criteria. The acral erythematous maculopapular lesion was the most common, as well as erythema multiforme, varicella rash, and presentations similar to Kawasaki disease. The duration of the skin lesion was one to two weeks in 43%. Skin biopsy of 18 cases complete superficial and deep perivascular and paracrine lymphocytic infiltrate and lymphocytic vasculitis were reported. RT-PCR was positive in 13.8 % of the cases. The serological markers of herpes simplex virus and parvovirus B19 analyzed were negative, except for Mycoplasma pneumoniae in two of 20 cases. The pathophysiological mechanism of skin lesions secondary to SARS-CoV-2 infection has not yet been explained; likely to be a combination of one or more complex mechanisms, direct skin damages induced by the virus, vasculitis-like reactions either indirect or secondary injuries as a consequence of a systemic inflammatory reaction. Publications from years 2019 to 2021 are reviewed in PubMed as the main search source, using key words.

The Correlation of Neutrophil-Lymphocyte Ratio and Eosinophil Count with SCORTEN in SJS/TEN

Introduction

Stevens–Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are acute severe cutaneous adverse reactions commonly caused by medication. Precise evaluation of disease severity in initial setting must be obtained to start appropriate treatment. Neutrophil and lymphocyte ratio (NLR) plays a role in displaying inflammatory reaction while eosinophils count (EC) influences immunological dysregulation including the proliferation of cytotoxic cells in early onset of SJS/TEN.

Objective

To evaluate whether NLR and EC serve as prognostic markers of disease severity in patients with SJS/TEN using SCORTEN.

Methods

A single center study with retrospective study included SJS/TEN patients at Dr. Moewardi General Hospital Surakarta in January 1st 2018–December 31st 2020. The required laboratory data was assessed at the beginning of the patient’s admission through medical records. The significance analysis were performed using one-way ANOVA and Spearman while the receiver-operator curve were used to evaluate the prognostic value of variables for severity in SJS/TEN patients.

Results

The total sample in this study was 24 patients with majority female (58%) and range from 25 to >50 years (54%). The results demonstrated of significant difference and positively correlated between NLR and EC with severity of SJS/TEN (p<0.01; r>0.05). The specificity and sensitivity of 51%;61% and 70%;60%, respectively.

Conclusion

NLR and EC can be used as prognosticators of severity in SJS/TEN while further research on other inflammatory markers with increased number of samples and study centers are needed to provide more actual data.

Virological Characterization of Pigs with Erythema Multiforme

Erythema multiforme in pigs is an acute, self-limiting disease characterized by red skin areas and often associated with anorexia, fever and respiratory problems. The cause of the disease remains unknown. In a recent study, animals of a commercial breeding herd in Greece were examined, and all animals were found seropositive for porcine reproductive and respiratory syndrome virus (PRRSV). However, neither PRRSV and porcine circovirus type 2 (PCV2) viremia nor antibodies against Aujeszky's disease virus, African swine fever virus and classical swine fever virus were detected. Here, an extended examination of these pigs was performed on a wide range of porcine viruses using highly sensitive polymerase chain reaction (PCR)-based methods. Affected skin of five animals revealed the presence of porcine lymphotropic herpesvirus-1 (PLHV-1) in all cases, PLHV-2 in one animal and PLHV-3 in four animals. However, neither porcine cytomegalovirus (PCMV) nor porcine circoviruses (PCV1, PCV2, PCV3 and PCV4) were detected. In blood samples, PLHV-1 was present in two animals and PLHV-2, PCV2 and PCV3 in one individual, with PCMV, PCV1 and PCV4 in none of the animals. In one animal, four viruses were found in the blood (PLHV-1, PLHV-2, PCV2 and PCV3). A PRRSV viremia was also not detected. All animals carried porcine endogenous retrovirus C (PERV-C) in their genome, but recombinant PERV-A/C was not detected. The results suggest that porcine viruses may be involved in erythema multiforme in these animals and that further studies are needed to assess the role of these pathogens in the disease.

Bullous Erythema Multiforme Secondary to Trimethoprim-Sulfamethoxazole Use, Treated With Cyclosporine in a 91-Year-Old Male

Erythema multiforme is an acute, immune-mediated, mucocutaneous condition in which 90% of cases are triggered by infection. The second most common cause is drug-induced. It classically presents with itchy, burning targetoid lesions on the skin and mucous membranes. The lesions may be mistaken for other conditions, and thus, rapid and correct diagnosis is crucial. It is most often treated with corticosteroids, though non-responders or those with weakened immune systems may require immunomodulatory therapy. We present the case of a 91-year-old male who developed bullous erythema multiforme after treatment with trimethoprim-sulfamethoxazole who was successfully treated with cyclosporine.

Stevens-Johnson Syndrome and Toxic Epidermal Necrolysis: A Review of Diagnosis and Management

Stevens-Johnson Syndrome (SJS) and Toxic Epidermal Necrolysis (TEN) are rare diseases that are characterized by widespread epidermal necrosis and sloughing of skin. They are associated with significant morbidity and mortality, and early diagnosis and treatment is critical in achieving favorable outcomes for patients. In this scoping review, Excerpta Medica dataBASE and PubMed were searched for publications that addressed recent advances in the diagnosis and management of the disease. Multiple proteins (galectin 7 and RIP3) were identified that are promising potential biomarkers for SJS/TEN, although both are still in early phases of research. Regarding treatment, cyclosporine is the most effective therapy for the treatment of SJS, and a combination of intravenous immunoglobulin (IVIg) and corticosteroids is most effective for SJS/TEN overlap and TEN. Due to the rare nature of the disease, there is a lack of prospective, randomized controlled trials and conducting these in the future would provide valuable insights into the management of this disease.

Rare Diseases of the Oral Cavity, Neck, and Pharynx

Diseases occurring with an incidence of less than 1-10 cases per 10 000 individuals are considered as rare. Currently, between 5 000 and 8 000 rare or orphan diseases are known, every year about 250 rare diseases are newly described. Many of those pathologies concern the head and neck area. In many cases, a long time is required to diagnose an orphan disease. The lives of patients who are affected by those diseases are often determined by medical consultations and inpatient stays. Most orphan diseases are of genetic origin and cannot be cured despite medical progress. However, during the last years, the perception of and the knowledge about rare diseases has increased also due to the fact that publicly available databases have been created and self-help groups have been established which foster the autonomy of affected people. Only recently, innovative technical progress in the field of biogenetics allows individually characterizing the genetic origin of rare diseases in single patients. Based on this, it should be possible in the near future to elaborate tailored treatment concepts for patients suffering from rare diseases in the sense of translational and personalized medicine. This article deals with orphan diseases of the lip, oral cavity, pharynx, and cervical soft tissues depicting these developments. The readers will be provided with a compact overview about selected diseases of these anatomical regions. References to further information for medical staff and affected patients support deeper knowledge and lead to the current state of knowledge in this highly dynamic field.

Erythema Multiforme Major Associated With Community-Acquired Pneumonia: Lessons From a Case Report

Background: Erythema multiforme (EM) is an acute immune-mediated inflammatory mucinous skin disorder. The etiology of pediatric EM involves infections, medications, autoimmune diseases, and genetic factors. Case Report: An 8-year-old girl with Mycoplasma pneumoniae (MP) associated community-acquired pneumonia developed erythema target-like symptoms 1 week after azithromycin administration. The erythema quickly spread throughout the body involving the oral and ocular mucous membranes, the trunk, and the extremities, and eventually developed into erythema multiform major (EMM). Through drug withdrawal and specific treatment including systemic corticosteroids and supportive care, her clinical symptoms were improved. After 31 days, most of the mucocutaneous symptoms were relieved, except pigmentation. Human leukocyte antigen (HLA) gene sequencing was performed and 20 HLA genotypes were identified. The patient follow-up lasted for 18 months. Rashes appeared on her trunk when receiving azithromycin orally after discharge and then disappeared after azithromycin withdrawal. Conclusions: Pediatric EM is a rare disease and recognition of its etiology is important for EM management. In this case, azithromycin and HLA-DQB1 ^* 03:01 genotype may contribute to EMM. Lesson: For drug-induced EM, rapid identification and withdrawal of the causative drugs is critical. Re-exposure to the same drug or exposure to drugs with similar chemical structures should also be avoided. Patient education and rational use of medicines are essential for pediatric patients.