Dermoscopic characteristics of Merkel cell carcinoma.

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.

Use of Dermoscopy among Greek Dermatologists in Everyday Clinical Practice: A National Questionnaire-Based Study.

Background: Dermatoscopy has been established as an important diagnostic tool for a wide range of skin diseases. This study aims to evaluate the use of dermatoscopy in clinical practice among Greek dermatologists. Methods: A nationwide questionnaire-based survey was conducted collecting data on the frequency of dermatoscopic examinations, the types of lesions examined, training and educational resources, as well as factors influencing the choice to incorporate dermatoscopy into daily clinical routines. Results: A total of 366 Greek dermatologists participated in the survey. Most of the respondents reported the daily use of dermatoscopy in their practice. Pigmented and non-pigmented lesions, inflammatory diseases, cutaneous infectious, hair disorders, and nail lesions were the most common indications for dermatoscopy. Factors influencing the utilization of dermatoscopy included increased diagnostic accuracy, enhanced patient care, better patient communication and general compliance, and improved satisfaction among dermatologists. Conclusions: This national questionnaire-based study demonstrates that dermatoscopy has become an integral part of daily dermatological practice in Greece. The findings highlight the significance of structured training and education to promote dermoscopy's effective and routine use. Incorporating dermatoscopy into clinical practice not only improves diagnostic precision but also enhances patient care, contributing to the overall quality of dermatological services in Greece.

Color Analysis of Merkel Cell Carcinoma: A Comparative Study with Cherry Angiomas, Hemangiomas, Basal Cell Carcinomas, and Squamous Cell Carcinomas.

Merkel cell carcinoma (MCC) is recognized as one of the most malignant skin tumors. Its rarity might explain the limited exploration of digital color studies in this area. The objective of this study was to delineate color alterations in MCCs compared to benign lesions resembling MCC, such as cherry angiomas and hemangiomas, along with other non-melanoma skin cancer lesions like basal cell carcinoma (BCC) and squamous cell carcinoma (SCC), utilizing computer-aided digital color analysis. This was a retrospective study where clinical images of the color of the lesion and adjacent normal skin from 11 patients with primary MCC, 11 patients with cherry angiomas, 12 patients with hemangiomas, and 12 patients with BCC/SCC (totaling 46 patients) were analyzed using the RGB (red, green, and blue) and the CIE Lab color system. The Lab color system aided in estimating the Individual Typology Angle (ITA) change in the skin, and these results are documented in this study. It was demonstrated that the estimation of color components can assist in the differential diagnosis of these types of lesions because there were significant differences in color parameters between MCC and other categories of skin lesions such as hemangiomas, common skin carcinomas, and cherry hemangiomas. Significant differences in values were observed in the blue color of RGB (p = 0.003) and the b* parameter of Lab color (p < 0.0001) of MCC versus cherry angiomas. Similarly, the mean a* value of Merkel cell carcinoma (MCC) compared to basal cell carcinoma and squamous cell carcinoma showed a statistically significant difference (p < 0.0001). Larger prospective studies are warranted to further validate the clinical application of these findings.

A narrative review of management of wounds in palliative care setting.

BACKGROUND AND OBJECTIVE: A chronic wound is one that is physiologically compromised as a result of a disturbance of the wound-healing cycle brought on by, among other parameters, poor angiogenesis, innervation, or cellular migration. Given the high frequency and incidence rates of different wound categories in clinical practice in the setting of chronically ill patients, wound management is becoming an increasingly important component and pillar of the overall care of patients with terminal illnesses. The purpose of this narrative review is to provide an overview and evaluation of the assessment methods and management of chronic wounds in the clinical practice of palliative care. METHODS: Papers on the management of wounds in palliative care have been retrieved using PubMed to July 2023. The search terms used included "wounds", "ulcers", "palliative care", "palliative management", and "end of life". KEY CONTENT AND FINDINGS: The review highlights the importance of early palliative care referral and total pain management in the management of wounds. Patients with wounds often report multiple symptoms, and pain is one of the most common and distressing among them. Despite the availability of multiple guidelines about treatment to relieve pain, almost half of all cancer patients still receive inappropriate care for pain. The review also discusses the etiology of pain and provides strategies for managing the painful wound once it has been identified. The greatest need today in the treatment of chronic wounds is consensus-based knowledge vetted by practical experience and backed up by scientific evidence, which is easily communicated and available to all wound care practitioners. CONCLUSIONS: High-quality research together with wound care practice that leads to the best outcomes might include pain reduction, exudate management, odor management, and/or other quality-of-life benefits to wound care. There is a need for specialized palliative care teams to manage expectations throughout the process while maintaining hope.

Dermoscopy of Actinic Keratosis: Is There a True Differentiation between Non-Pigmented and Pigmented Lesions?

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.

Comorbidities of Chronic Urticaria: A glimpse into a complex relationship.

Chronic Urticaria (CU) is a chronic inflammatory, predominantly mast cell-driven disease, characterized by the development of wheals and/or angioedema for more than 6 weeks. It affects approximately 1%-5% of the total population worldwide and imposes a substantial burden on health-related quality of life, significantly affecting patients' daily life. The economic impact on the health system is also not negligible, with an estimated cost per patient per year of approximately 2.000 $ in the United States. Although the underlying pathophysiology is not fully explored, autoimmune mechanisms have been proposed, including type I ("autoallergy" by means of autoantibodies to self-antigens) and type IIb (autoimmunity). Atopic, autoimmune, and psychiatric disorders are prevalent comorbidities in both children and adults with Chronic Spontaneous Urticaria (CSU). Although malignancies, cardiovascular diseases and other comorbidities have also been reported as associated diseases in patients with CSU, data remain scarce. It is still unknown whether the aforementioned comorbidities share common pathophysiological mechanisms with specific endotypes of CSU. The current review aims to overview current data on comorbidities of CU, and furthermore to comment on the potential linked pathways underlying these diseases.

Actinic Keratoses (AK): An Exploratory Questionnaire-Based Study of Patients' Illness Perceptions.

BACKGROUND: Decreased illness perception among actinic keratoses (AK) patients is a major barrier to the effective management of AK. OBJECTIVE: We aimed to investigate patients' illness and treatment perceptions, their correlation to demographics and AK/skin cancer history, and secondarily the influence of these perspectives on treatment and sunscreen use. MATERIALS AND METHODS: Participants completed questionnaires based on the Brief Illness Perception Questionnaire and statistical analysis was performed. RESULTS: In total, 208 AK patients were enrolled. A large proportion were poorly aware of the disease (41.4%), with less than half (43%) being familiar with AK. Patients were aware of the chronic nature of the disease and its correlation to sunlight regardless of demographic characteristics. The level of education played a role in disease awareness (p = 0.006), and treatment plan perception (p = 0.002). The increase in sunscreen protection after AK diagnosis was higher in women (p = 0.009) and younger patients (p = 0.044). Patients' concerns regarding treatment were mainly related to the duration (30%) and effectivity (25%). Dermatologists' statements highlighting that AK are precancerous lesions (86.2%) influenced patients' willingness for treatment. CONCLUSION: Improved awareness of AK is necessary to increase treatment seeking and compliance, regarding both treatment and sunscreen use. Dermatologists' statements may have critical influence on patients' decisions to receive treatment for AK.

How to spot a basosquamous carcinoma: a study on demographics, clinical-dermatoscopic features and histopathological correlations.

Basosquamous carcinoma (BSC) is a relatively rare type of neoplasm originating from basal cell carcinoma with features of squamous differentiation. BSC has an aggressive local behaviour with a tendency for recurrence and a less frequent metastatic potential The primary objective was to describe the dermatoscopic features of the tumour. Secondary goals were to detect the morphological features of the tumour along with patients' characteristics and to evaluate possible dermatoscopic and histopathological correlations Twenty-two patients with 25 BSCs were enrolled. All tumours were surgically excised and diagnosis was based on histopathology. Clinical and dermatoscopic images were evaluated by two investigators based on pre-defined criteria, and a statistical analysis was performed The median age of the patients was 78 years old (range: 52-88) and the male/female ratio was 2.14. All patients reported history of either occupational (50%) or recreational (50%) intensive sun exposure and 72.73% had signs of actinic keratosis. The most common anatomical site of the tumours was the head/neck area (72%). Clinically, nodular (64%), ulcerated (88%) and non-pigmented (76%) lesions prevailed. Dermatoscopically, 92% had prominent vasculature and monomorphous arborizing vessels with a diffuse arrangement, representing the most frequently observed type. Ulceration (88%), SCC dermatoscopic criteria (56%), white strands/blotches (56%) and features of pigmentation (40%) were also detected We suggest that the most common prototype of BSC is an ulcerated, facial nodule in elderly males with photo-damaged skin, dermatoscopically displaying combined features of mostly nodular BCC and, to a less extent, SCC.

Novel Insights for Patients with Multiple Basal Cell Carcinomas and Tumors at High-Risk for Recurrence: Risk Factors, Clinical Morphology, and Dermatoscopy.

INTRODUCTION: Basal cell carcinoma (BCC) quite frequently presents as multiple tumors in individual patients. Neoplasm's risk factors for local recurrence have a critical impact on therapeutic management. OBJECTIVE: To detect risk factors for multiple BCCs (mBCC) in individual patients and to describe clinical and dermatoscopic features of low- and high-risk tumors. MATERIALS & METHODS: Our study included 225 patients with 304 surgically excised primary BCCs. All patients' medical history and demographics were recorded. Clinical and dermatoscopic images of BCCs were evaluated for predefined criteria and statistical analyses were performed. RESULTS: Grade II-III sunburns before adulthood (OR 2.146, p = 0.031) and a personal history of BCC (OR 3.403, p < 0.001) were the major predisposing factors for mBCC. Clinically obvious white color (OR 3.168, p < 0.001) and dermatoscopic detection of white shiny lines (OR 2.085, p = 0.025) represented strongly prognostic variables of high-risk BCC. Similarly, extensive clinico-dermatoscopic ulceration (up to 9.2-fold) and nodular morphology (3.6-fold) raise the possibility for high-risk BCC. On the contrary, dermatoscopic evidence of blue-black coloration had a negative prognostic value for high-risk neoplasms (light OR 0.269, p < 0.001/partial OR 0.198, p = 0.001). CONCLUSIONS: Profiling of mBCC patients and a thorough knowledge of high-risk tumors' clinico-dermatoscopic morphology could provide physicians with important information towards prevention of this neoplasm.

Dermoscopy as a Tool in Differentiating Cutaneous Squamous Cell Carcinoma From Its Variants.

BACKGROUND: Dermoscopic features of cutaneous squamous cell carcinoma (cSCC) have been widely studied, but their accuracy should be further investigated. OBJECTIVES: This study assessed the diagnostic accuracy of a set of predetermined dermoscopic structures for 3 variants of cSCC, namely Bowen disease, keratoacanthoma and invasive cSCC. METHODS: Dermoscopic images of 56 histopathologically confirmed cSCC lesions (9 Bowen disease lesions, 7 keratoacanthomas, and 40 invasive cSCCs) were examined, and the diagnostic accuracy of dermoscopic structures was assessed. Discriminative ability of statistically significant positive predictors was determined using receiver operating characteristic (ROC) curves, and defined as an area under the ROC curve >0.700. RESULTS: Dermoscopic structures with statistical significance and discriminative ability were: for Bowen disease, clustered glomerular vessels and erosions; for keratoacanthoma, a central keratin plug; and for invasive cSCC, a mixed color of the background. Clustered and glomerular vessels had, for Bowen disease, perfect diagnostic accuracy, with: sensitivity of 88.9% for both features; specificity of 97.9% and 93.6%, respectively; positive predictive value (PPV) of 88.9% and 72.7%, respectively; and negative predictive value (NPV) of 97.8% for both. Erosions had, for BD, high specificity (87.2%) and NPV (91.1%), but low sensitivity (55.6%) and PPV (45.5%). A central keratin plug had, for keratoacanthoma, high specificity (87.8%) and NPV (93.5%), but low sensitivity (57.1%) and PPV (40%). A mixed background color had, for invasive cSCC, high specificity (81.3%) and PPV (89.7%), but low sensitivity (65%) and NPV (48.2%). CONCLUSION: Dermoscopy accurately differentiates BD, through clustered glomerular vessels, from keratoacanthoma and invasive cSCC. Dermoscopic structures of keratoacanthoma and invasive cSCC overlap, and only histopathologic analysis differentiates them precisely.

Mucocutaneous manifestations in patients with inflammatory bowel disease: a decade study from a Greek cohort.

BACKGROUND: We sought to investigate the prevalence of mucocutaneous manifestations (MCM) and potential associations with clinical characteristics in Greek patients with IBD. METHODS: This was a retrospective observational single-center study. Patients with IBD diagnosis attending a tertiary referral hospital in Heraklion, Crete, from January 2010 to January 2020 were included. Data were extracted with relevant medical information from the IBD registry. Standard statistical tests, descriptive statistics tests, chi-square, Pearson correlation and multivariate analysis tests were performed, using IBM SPSS Statistics 25. RESULTS: A total of 806 IBD patients were included in the study: 463 (57.4%) males, 441 (54.7%) Crohn's Disease, 352 (43.7%) ulcerative colitis and 13 (1.6%) IBD unclassified (IBD-U). Mean age was 50.67 ± 17.67 years, mean age of IBD diagnosis 36.67 ± 16.53 years and mean disease duration 13.65 ± 9.89 years. The prevalence of MCM was 171/806 (21.2%), 9.65% in ulcerative colitis and 30.84% in CD. The presence of MCM was significantly correlated with younger age of IBD diagnosis, longer IBD duration, CD diagnosis, inflammatory behavior and ileal or ileocolonic location of CD, extensive colitis in ulcerative colitis, intestinal manifestations (EIMs) and treatment with immunosuppressant or anti-TNFa. The development of MCM was independently associated with the presence of other EIMs odds ratio (OR), 4.03 [95% confidence interval (CI), 2.60-6.24; P < 0.001] and treatment with immunosuppressant (OR, 1.87; 95% CI, 01.14-3.07; P = 0.013) or anti-TNFa (OR = 2.47; 95% CI, 1.59-3.84; P < 0.01). CONCLUSIONS: In our study, about one-fifth of IBD patients developed MCM that was more frequently present in CD than in ulcerative colitis.

Female Patient with Two Simultaneous Giants Facial Basal Cell Carcinomas Demonstrates a Positive Response to Vismodegib as a Monotherapy.

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.

A randomized, single-blinded, vehicle-controlled study of a topical active blend in the treatment of androgenetic alopecia.

Αndrogenetic alopecia (AGA) is the most common hair disorder, affecting approximately 50% of men and women. A topical lotion that contains two patented formulas (Redensyl and Sepicontrol A5), has been introduced as an alternative approach to standard therapies for AGA. Forty-four patients with AGA were randomized either to apply the active lotion or the vehicle, twice daily for 24 weeks. Subjects were evaluated at 0, 12, and 24 weeks by clinical examination, photographic documentation, quality of life evaluation (DLQI), and trichogram (anagen-to-telogen ratio). Forty-one patients, 18 males and 23 females, completed the study. Among patients receiving active treatment (n = 26), 7.7% had great improvement, 73.1% had moderate improvement, and 19.2% remained stable. The median self-assessment score increased from 4 at baseline to 6 at 24 weeks (P < .001), while the DLQI improved from 4 to 3, respectively (P < .001). The median anagen-to-telogen ratio increased from 2.25 to 4.00 to 6.02 at weeks 0, 12, and 24, respectively. No significant adverse events were reported. This new topical active blend is effective in the treatment of AGA, with high degree of patients' satisfaction, improvement of quality of life, and an excellent safety profile. Thus, it may represent a useful alternative therapeutic approach for AGA.

Panitumumab-Induced Eruptive Seborrhoeic Keratosis in a Patient with Metastatic Colorectal Cancer.

OBJECTIVES: Agents targeting the epidermal growth factor receptor (EGFR)-mediated signalling pathway are increasingly being used for the treatment of advanced lung, pancreatic, colorectal and head and neck cancers. CASE PRESENTATION: Here, we report the first case of eruptive seborrhoeic keratosis following panitumumab treatment, an anti-EGFR monoclonal antibody, in a 73-year-old patient with stage 4 (IV) colorectal cancer with hepatic metastasis. CONCLUSION: While panitumumab is an emerging therapy for RAS wild-type metastatic colorectal cancer, physicians should consider panitumumab as a potential cause of eruptive seborrhoeic keratosis. LEARNING POINTS: Panitumumab is a fully human monoclonal antibody targeting the epidermal growth factor receptor (EGFR), indicated for the treatment of wild-type RAS metastatic colorectal cancer.Dermatologic toxicity of all grades occurs in more than 90% of patients treated with EGFR inhibitors.To the best of our knowledge, we have reported here a rare side effect; panitumumab-induced eruptive seborrhoeic keratosis.

Lichen Planopilaris Developing at the Margins of a Sebaceous Nevus of Jadassohn: Co-existence or Etiologic Association?

Sebaceous nevus (SN), is a skin hamartoma, combining a variety of epidermal, follicular, sebaceous, and apocrine abnormalities. Although usually present at birth, it may become apparent later in life appearing as a yellowish-brown, verrucous plaque with alopecia. SN is implicated with secondary tumors arising on the hairless plaque during the adulthood. Lichen planopilaris is a common, primary lymphocytic scarring alopecia of unknown etiology, characterized by lichenoid/interface perifollicular lymphocytic infiltrate occurring at the level of the infundibulum and the isthmus. Here, we present a case of a 48-year-old Caucasian male with lichen planopilaris lesions developing at the periphery of a preexisting SN. Our case raises the question, whether the development of lichen planopilaris was coincidental, or is it indicative of an etiologic association between the lichen planopilaris and SN.