Dermoscopy and Trichoscopy in Dermatomyositis—A Cross-Sectional Study

Background: (Video)dermoscopy is a non-invasive diagnostic technique that has a well-established role in dermatooncology. In recent years, this method has also been increasingly used in the assessment of inflammatory dermatoses. So far, little is known about the (video)dermoscopic features of dermatomyositis (DM). Methods: Consecutive patients with DM were included in the study and videodermoscopic assessments of the nailfolds, scalp, and active skin lesions were performed. Results: Fifteen patients with DM (10 women and 5 men) were included. Capillaroscopy showed elongated capillaries (90.9%), avascular areas (81.8%), disorganized vessel architecture (81.8%), tortuous capillaries (72.7%), dilated capillaries (72.7%), and hemorrhages (72.7%). The trichoscopic findings included linear branched vessels (80.0%), linear vessels (60.0%), linear curved vessels (53.3%), perifollicular pigmentation (40.0%), perifollicular erythema (33.3%), scaling (20.0%), white (20.0%) or yellow (20%) interfollicular scales, and white (20.0%) or pinkish (13.3%) structureless areas. Polymorphic vessels of an unspecific distribution and white or pink structureless areas were frequently observed under dermoscopy in cutaneous manifestations of DM, including Gottron’s papules and Gottron’s sign. Conclusions: Dermoscopy of the nailfolds (capillaroscopy), scalp (tricoscopy), and active cutaneous lesions may be of value in the preliminary diagnosis of DM.

A clinical and epidemiological study of non-venereal genital dermatoses: A cross-sectional, hospital-based study from Nepal

Background: Non-venereal genital dermatoses are the conditions of the genitalia that are not transmitted sexually. They may be confused with venereal diseases and be responsible for concerns among patients as well as diagnostic dilemmas for physicians. This study was conducted to determine the prevalence and describe the patterns of non-venereal genital conditions. Methods: This was a hospital-based, cross-sectional, prospective study conducted in a tertiary center in Kathmandu, Nepal, over a period of one year. Non-probability purposive sampling was employed to select the samples. Two hundred patients were enrolled in the study. Ethical approval was taken prior to the study. Detailed history taking along with a complete cutaneous examination were conducted for all patients and recorded in a preformed proforma. Results: Among 21366 patients, two hundred patients had non-venereal genital dermatoses. The prevalence of non-venereal dermatoses was 0.93 %. The mean age of the patient was 29.5 ± 15 years, ranging from 2 months to 81 years. The male-to-female ratio was 2.7:1. Itching was the most common presentation (46%). Fifty-four different types of non-venereal diseases were encountered and classified into inflammatory lesions (n = 84; 42%), infections and infestations (n = 43; 21.5%), normal variants and benign abnormalities (n = 41; 20.5%), and miscellaneous (n = 21; 10.5%). The most common were, among inflammatory dermatoses, drug reactions (11.5%) and eczema (6.5%) and, among infections and infestations, scabies (9.5%) and fungal infections (7.5%). Conclusion: Non-venereal genital dermatoses are important yet less common dermatological conditions. A number of patients have misconceptions about them as venereal. A comprehensive study of non-venereal dermatological genital conditions is required for careful management to minimize morbidity.

Vulvar Craurosis due to Severe Genitourinary Syndrome of Menopause Complicated by Lichen Sclerosus: Two Case Reports and Literature Review

Background: Vulvovaginal atrophy affects approximately 45% of middle-aged women, as a result of decreased estrogen circulating levels and is often associated with vulvovaginal discomfort in menopausal patients. The spectrum of adverse consequences makes long-term treatment essential, not only for symptom relief, but also to avoid further complications. These symptoms can even be worsened if other vulvar conditions coexist, such as inflammatory dermatoses. Clinical presentation: We present two cases of patients with severe vulvar atrophy and craurosis, who required vulvo-vaginal opening associated with medical treatment. In both patients, we diagnosed severe genitourinary syndrome of menopause (GSM) complicated by vulvar lichen sclerosus, a very rare clinical situation. In case 1, the symptoms had progressed despite local estrogen treatment for vulvovaginal atrophy, and lichen wasn’t considered in previous check-ups. In contrast, patient nº 2 presented in the ER with impossibility to urinate and was then diagnosed and treated for underlying causes. Conclusions: GSM treatment should be a priority. The absence of improvement or progression of genital atrophy should alert the specialist to the coexistence of other vulvar pathologies.

Circulating heat shock protein 90 (Hsp90) and autoantibodies to Hsp90 are increased in patients with atopic dermatitis

Atopic dermatitis (AD) is one of the most common chronic inflammatory dermatoses characterized by persistent itching and recurrent eczematous lesions. While the primary events and key drivers of AD are topics of ongoing debate, cutaneous inflammation due to inappropriate IgE (auto)antibody–related immune reactions is frequently considered. Highly conserved and immunogenic heat shock protein 90 (Hsp90), a key intra- and extracellular chaperone, can activate the immune response driving the generation of circulating anti-Hsp90 autoantibodies that are found to be elevated in several autoimmune disorders. Here, for the first time, we observed that serum levels of Hsp90 and anti-Hsp90 IgE autoantibodies are significantly elevated (p < 0.0001) in AD patients (n = 29) when compared to age- and gender-matched healthy controls (n = 70). We revealed a positive correlation (0.378, p = 0.042) between serum levels of Hsp90 and the severity of AD assessed by Scoring Atopic Dermatitis (SCORAD). In addition, seropositivity for anti-Hsp90 IgE has been found in 48.27% of AD patients and in 2.85% of healthy controls. Although further studies on a larger group of patients are needed to confirm presented data, our results suggest that extracellular Hsp90 and autoantibodies to Hsp90 deserve attention in the study of the mechanisms that promote the development and/or maintenance of atopic dermatitis.

Ceramides: Where do we stand?

Ceramides are an integral component of the epidermal barrier system. Alterations in ceramides levels are associated with various inflammatory dermatoses such as psoriasis, atopic dermatitis, ichthyosis, Gaucher’s disease, acne vulgaris, and skin aging. Various formulations containing ceramides have been developed so that exogenous ceramides can repair the barrier function. Herein, the authors have provided an overview of the basic anatomy, structure, functioning, and importance of ceramides and their role in healthy skin and various skin disorders. In addition, the authors review conventional and newer technologies for delivery of ceramides in various skin diseases.

Cutaneous Adverse Reactions to COVID-19 Vaccines: Insights from an Immuno-Dermatological Perspective

(1) Background: Numerous vaccines are under preclinical and clinical development for prevention of severe course and lethal outcome of coronavirus disease 2019 (COVID-19). In light of high efficacy rates and satisfactory safety profiles, some agents have already reached approval and are now distributed worldwide, with varying availability. Real-world data on cutaneous adverse drug reactions (ADRs) remain limited. (2) Methods: We performed a literature research concerning cutaneous ADRs to different COVID-19 vaccines, and incorporated our own experiences. (3) Results: Injection site reactions are the most frequent side effects arising from all vaccine types. Moreover, delayed cutaneous ADRs may occur after several days, either as a primary manifestation or as a flare of a pre-existing inflammatory dermatosis. Cutaneous ADRs may be divided according to their cytokine profile, based on the preponderance of specific T-cell subsets (i.e., Th1, Th2, Th17/22, Tregs). Specific cutaneous ADRs mimic immunogenic reactions to the natural infection with SARS-CoV-2, which is associated with an abundance of type I interferons. (4) Conclusions: Further studies are required in order to determine the best suitable vaccine type for individual groups of patients, including patients suffering from chronic inflammatory dermatoses.

Darier’s Disease Flare following COVID-19 Vaccine

Darier’s disease is a rare genodermatosis characterized clinically by dyskeratotic papules in the seborrheic and intertriginous areas and nail abnormalities. Dyskeratosis and acantholysis are typical histological findings. Darier’s disease is not known to be inflammatory by nature as inflammation occurs primarily due to local infections, and it may therefore differ from inflammatory dermatoses such as psoriasis and cutaneous lupus in response to antigen stimulation. Known triggers of Darier’s disease primarily include exogenous factors such as sun exposure, friction, or infection. We present a case of a 47-year-old white female with a flare of Darier’s disease 2 days following her first vaccination with COVID-19 vaccine (ChAdOx1-s [recombinant]) (Vaxzevria^® [previously known as COVID-19 vaccine AstraZeneca]). In this case report, we discuss possible mechanisms linking the vaccination and the flare of Darier’s disease. We consider inflammatory mechanisms as well as a random co-occurrence. Due to the close time-related association between the disease flare and the COVID-19 vaccination, we find an urge to make other clinicians aware of a possible association.