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Atopic dermatitis (AD) is a common inflammatory skin disease with a complex pathophysiology, intertwining immune dysregulation, epidermal barrier dysfunction, IgE sensitization, environmental factors and genetic predisposition. It has been recently identified that interleukins -4 and -13 play crucial roles in the type-2-driven inflammation that characterizes AD, contributing to its symptomatology. Novel therapeutic approaches that target Th2 cytokines and their respective pathways have been developed, aiming to optimize the treatment of AD.

Background Merkel cell carcinoma (MCC) is a rare, aggressive, cutaneous tumour with high mortality and frequently delayed diagnosis. Clinically, it often manifests as a rapidly growing erythematous to purple nodule usually located on the lower extremities or face and scalp of elderly patients. There is limited available data on the dermoscopic findings of MCC, and there are no specific features that can be used to definitively diagnose MCC. Aim of the study Here, we aimed to summarize existing published literature on dermatoscopic and reflectance confocal microscopy (RCM) features of MCC. Materials and methods To find relevant studies, we searched the PubMed and Scopus databases from inception to April 12, 2023. Our goal was to identify all pertinent research that had been written in English. The following search strategy was employed: (“ dermoscopy” OR “ dermatoscopy” OR “ videodermoscopy” OR “ videodermatoscopy” OR “ reflectance confocal microscopy”) AND “ Merkel cell carcinoma”. Two dermatologists, DK and GE, evaluated the titles and abstracts separately for eligibility. For inclusion, only works written in English were taken into account. Results In total 16 articles were retrieved (68 cases). The main dermoscopic findings of MCC are a polymorphous vascular pattern including linear irregular, arborizing, glomerular, and dotted vessels on a milky red background, with shiny or non-shiny white areas. Pigmentation was lacking in all cases. The RCM images showed a thin and disarranged epidermis, and small hypo-reflective cells that resembled lymphocytes arranged in solid aggregates outlined by fibrous tissue in the dermis. Additionally, there were larger polymorphic hyper-reflective cells that likely represented highly proliferative cells. Conclusion Dermoscopic findings of MCC may play a valuable role in evaluating MCC, aiding in the early detection and differentiation from other skin lesions. Further prospective case-control studies are needed to validate these results.

To review current knowledge on how patients with hidradenitis suppurativa (HS) experience stigmatization, as well as on its associations with clinical and psychosocial characteristics of the disease. A better understanding of these may help dermatologists improve screening and management for the benefit of HS patients. A MEDLINE search using the terms stigmatization, perceived stigma, self-stigma, and HS/acne inversa. Stigmatization is common among HS patients and has a strong psychosocial impact, which is often disproportional to the extent and severity of skin involvement. Stigmatization in HS has many faces and it is more prevalent and more severe than most other skin diseases. Stigmatization of HS patients is due not only to the distressing symptoms of pain, itch malodorous discharge, and disfiguring scars but also to the lack of knowledge about HS on part of the general public. Stigma is a significant contributor to the impairment of quality of life and psychiatric co-morbidities commonly seen in patients with HS. Therefore, evaluation for stigma and formulation of strategies to prevent stigmatization and treat its consequences, in the context of a multidisciplinary approach, may ameliorate considerably the lives of HS patients.

Angiotensin-converting enzyme (ACE) inhibitors are used primarily in the treatment of hypertension, heart failure, and in the acute phase of myocardial infarction. Lisinopril [N2-[(1S)-1-car-boxy-3-phenylpropyl]-L-lysyl-L-proline], enalapril [(S)-1-[N-[1-(ethoxycarbonyl)-3-phenylpropyl]-L-alanyl]-L-proline] and ramipril [2-aza-bicyclo-[3.3.0]-octane-3-carboxylic acid] are all five-membered heterocycles and three of the most prevalent ACE inhibitors in clinical use worldwide. ACE inhibitor-induced angioedema (AE) is clinically characterized by self-limited edema of the dermis and subcutaneous lipid tissue, localized on face skin, oral mucosa and tongue in most cases. However, severe episodes of intestinal AE misdiagnosed as acute appendicitis and laryngeal AE requiring incubation have been reported. The pathophysiology of ACE inhibitor-induced angioedema is attributed to the accumulation of bradykinin, which is a potent vasodilator with proinflammatory activity that is normally degraded by angiotensin-converting enzyme (ACE) and aminopeptidase P; however, a small proportion of treated patients is affected. Given that patients do not respond to anti-H1 antihistamines and steroids, early clinical recognition and discontinuation of the ACE inhibitors are the treatments of choice for the long-term management of ACE inhibitor- induced angioedema. The search period of the present review was set up until November 2023, and its aim is to shed light on the broader context of ACE inhibitor-induced angioedema, exploring aspects such as clinical presentation, pathophysiology, and therapeutic considerations in this potentially life-threatening condition. The exploration of alternative drug options such as angiotensin II receptor blockers, the potential association of coadministration of DPP-4 inhibitors with ACE inhibitors, the presentation of angioedema and the significant clinical importance of this condition are also discussed. By focusing on the chemical structure of ACE inhibitors, specifically their nitrogen-based heterocycles—an attribute shared by over 880 drugs approved by the FDA within the pharmaceutical industry—this review emphasizes the pivotal role of nitrogen scaffolds in drug design and underscores their relevance in ACE inhibitor pharmacology.

Tungiasis is a cutaneous ectoparasitosis caused by the penetration of gravid female fleas into the epidermis. Although endemic in tropical and subtropical regions, it remains rare in Europe, where most cases are travel-associated and secondary household transmission is seldom documented. This study describes imported tungiasis in Greece and investigates possible secondary household transmission in a non-endemic setting. Seven Greek men residing in Attica developed tungiasis following occupational exposure in Tanzania, together with one secondary case in a non-travelling household contact who had never travelled outside Greece. Diagnosis was based on clinical and dermoscopic findings and confirmed by amplification and sequencing of the mitochondrial cytochrome oxidase I (COI) gene. Household investigations were also performed. Eight male patients presented with painful plantar and/or subungual nodular lesions. Sequence analysis of COI demonstrated 657/662 bp (99%) identity with the reference sequence, and identical sequences were identified in all samples. A representative sequence was deposited in GenBank (accession no. PZ336383). All patients exhibited mild-to-moderate elevations of hepatocellular and cholestatic liver enzymes, which resolved within two weeks following treatment. One probable secondary household case was identified, and no infestation was detected among additional cohabitants or companion animals. This report documents imported tungiasis with probable secondary household transmission in Greece and highlights the importance of clinical awareness and environmental assessment in non-endemic settings.

Dermoscopic features of actinic keratosis (AK) have been widely studied, but there is still little evidence for their diagnostic accuracy. Our study investigates whether established dermoscopic criteria are reliable predictors in differentiating non-pigmented actinic keratosis (NPAK) from pigmented actinic keratosis (PAK). For this purpose, dermoscopic images of 83 clinically diagnosed AK (45 NPAK, 38PAK) were examined, and the sensitivity (Se), specificity (Sp), positive predictive value (PPV), and negative predictive value (NPV) were assessed. Features with statistical significance were the red pseudo-network (p = 0.02) for NPAK and the pigmented pseudo-network (p < 0.001) with a pigment intensity value even less than 10% for PAK (p = 0.001). Pigmented pseudo-network (Se: 89%, Sp: 77%, PPV: 77%, NPV: 89%) with a pigment intensity value of more than 10% (Se: 90%, Sp: 86%, PPV: 79%, NPV: 93%) had excellent diagnostic accuracy for PAK. Scale and widened follicular openings with yellowish dots surrounded by white circles were equally represented in both variants of AK. Linear wavy vessels and shiny streaks were more prominently observed in NPAK, as were rosettes in PAK, but these results failed to meet statistical significance. The red starburst pattern was near statistical significance for PAK. Therefore, pigmentation is the strongest dermoscopic predictor for the differentiation between NPAK and PAK.

Basal cell carcinoma (BCC) is the most frequent histological type of cancer in the world and accounts for approximately 80% of all skin cancers. In the majority of cases, they are slow-growing, low metastatic potential tumors, easy to cure by surgical or nonsurgical procedures. Giant BCC (GBCC) is a rare variant of BCC and according to the American Joint Committee on Cancer, this includes lesions with a diameter larger than 5 cm. GBCC's incidence has been reported to be less than 1%, and it displays a more aggressive behavior with both local invasion and higher metastatic potential. Archodaki et al. specifically reported that metastasis was present in 17.6% of GBCC patients during the primary examination. Patients with GBCC who are not suitable for either surgery or radiotherapy since 2012 seem to have another therapeutic option. Vismodegib is an oral small-molecule inhibitor of the Hedgehog pathway (HPI) that was approved for treating metastatic or locally advanced BCC in patients who are poor candidates for surgery or radiotherapy. In this case, we present a woman with two simultaneous facial GBCCs who was treated successfully using vismodegib as a monotherapy.

Hidradenitis suppurativa (HS) has been linked with body image (BI) impairment and reduced quality of life (QoL). We sought to evaluate the associations between Cutaneous Body Image Scale (CBIS) and disease severity in HS patients.Between July 2020 and January 2022, a cross-sectional study was carried out including consecutive HS patients above the age of 16 who attended a Tertiary Referral Hospital in Greece. Disease Severity was graded with the Hurley stage, HS-Physician’s Global Assessment (HS-PGA) scale, and the Modified Sartorius scale (MSS). Patients completed at their first visit ten survey instruments including Patients’ Severity of disease, pain and pruritus scale, CBIS, Multidimensional Body-Self Relations Questionnaire (MBSRQ) including 5 subscales: Appearance Evaluation (AE), Appearance Orientation (AO), Body Areas Satisfaction Scale (BASS), Overweight Preoccupation (OWP), and Self Classified Weight (SCW) , Dermatology Quality of Life Index (DLQI), Skindex-16, EQ5D 5L, EQ- visual analogue scale (VAS), PHQ9, and GAD7. In total, 70 HS patients above 16 years old participated, mean [SD] age, 34.44 [11.64] years; 49/70 (70%) males and 21/70 (30%) females. Mean ± SD CBI, DLQI, Skindex-16 total, EQ-5D-5L, EQ VAS, PHQ9 and GAD7 were 5.59 ± 1.58, 11.70 ± 8.88, 52.90 ± 27.75, 0.75 ± 0.21, 62.48 ± 21.12, 7.64 ± 5.56, 7.87 ± 5.23 respectively. Moderate to severe CBI dissatisfaction was reported by 36/70 (51.42%) patients. CBI was correlated with appearance evaluation (AE) ( p  < 0.01, r = 0.544), body areas satisfaction (BASS) ( p  < 0.01, r = 0.481), and overweight preoccupation subscale (OWPS) ( p  < 0.01, r =  − 0.267), and Skindex-16 ( p  < 0.01, r =  − 0.288). HS patients with affected genital areas scored higher in disease patient’s severity score ( p  = 0.015), and male patients scored higher in Skindex-16 than females( p  < 0.01). Our study found that the mean of CBI in HS patients was 5.59 ± SD 1.58. Predictors for CBI dissatisfaction were low scores of MBSRQ Appearance Evaluation (AE) and Body Areas Satisfaction Subscale (BASS).

Background/Objectives: Alopecia is a common and distressing hair loss condition that poses a major diagnostic challenge. While histopathology is the gold standard, its invasive nature limits its routine use. Trichoscopy, a non-invasive imaging technique, has shown promises in diagnosing and differentiating the various alopecia subtypes. However, existing diagnostic algorithms primarily rely on dermoscopic findings. To address this, we developed a novel, three-step algorithm that integrates clinical and trichoscopic features and employs pattern analysis as a diagnostic tool. Methods: A comprehensive literature review was conducted to identify key trichoscopic features associated with different alopecia types. The gathered data were used as a base for the description of trichoscopic features and patterns for each subtype of alopecia, either scarring or non-scarring. Results: The proposed algorithm is analyzed into three steps. In the first step, alopecia is categorized by distribution into: patchy, patterned, or diffuse. In the second step, it distinguishes between scarring and non-scarring alopecia based on the absence or presence of follicular ostia, respectively. Lastly, in the third step, alopecias are distinguished based on specific trichoscopic clues, allowing for the identification of distinct trichoscopic patterns. Conclusions: The three-step diagnostic algorithm for alopecia, utilizing clinical and dermoscopic findings, performs a pattern analysis in trichoscopy, leading to a dermoscopic diagnosis with great confidence, and minimizing the need for invasive diagnostic procedures.

Background and Objectives: Artificial intelligence (AI) has transitioned to an integral part of dermatology in only few years, yet perceptions of its use vary widely, reflecting diverse hopes, concerns, and perceived clinical utility. Materials and Methods: In this study, 300 dermatologists from 13 countries, representing a range of experience levels and AI usage statuses, were surveyed regarding the characteristics and applications of AI in dermatology. Results: Among respondents, 61.33% reported having used AI tools in clinical practice. Adoption of AI was observed across all age groups, countries, and experience levels. Analysis of the types of AI tools used revealed a strong reliance on general-purpose large language models (LLMs), with chatbots being the most frequently cited category, utilized by 58.15% of users. Younger clinicians demonstrated a significant preference for chatbots (p < 0.05). Country-specific patterns in AI adoption were also noted. The most highly rated expected benefit of AI in dermatology was improved diagnostic accuracy, while the primary concern centered on regulatory and ethical limitations, suggesting that the “AI revolution” in dermatology is currently constrained less by technical barriers and more by regulation considerations. Use of consent forms when AI use takes place was more frequently reported as mandatory by dermatologists who had never used AI, reflecting heightened caution among non-users (p = 0.03). Additionally, 75% of respondents agreed that formal training in AI is necessary, highlighting a significant gap in traditional medical education regarding emerging technologies.