Chitinase-3-like Protein 1 (YKL-40): A New Biomarker of Inflammation in Pyoderma Gangrenosum.

Pyoderma gangrenosum (PG) is a rare, neutrophilic dermatosis with unclear aetiopathology, considered as an autoinflammatory disease, associated with other immune-mediated disorders. Chitinase-3-like protein 1 (YKL-40) is an inflammatory biomarker secreted by a wide variety of cells, including neutrophils. To evaluate YKL-40 serum level in relation to clinicopathological data, 48 patients with PG and 40 healthy controls were enrolled in the study. Skin lesions were measured to calculate the affected area. Inflammatory parameters (C-reactive protein, white blood cell count with neutrophils) were determined from blood samples. YKL-40 and IL-6 levels were measured in serum by enzyme-linked immunosorbent assay. YKL-40 serum level was significantly higher in patients with PG than in controls (58.4 vs 36.4 ng/ml, respectively; p < 0.00001). The positive correlation between YKL-40 level and IL-6 level was observed (r=0.48, p = 0.0006) along with a trend towards significance of relationship between YKL-40 level and C-reactive protein (r=0.28, p = 0.052). YKL-40 can be considered a valuable biomarker of inflammation in PG.

Epidemiology of dermatophytoses in paediatric population in Southwestern Poland, 2011-2016.

INTRODUCTION: Dermatophytoses are the most common superficial fungal infections in paediatric population. Its pathogen pattern has changed over years. AIM: To analyse the spectrum of dermatophytoses in children living in Southwestern Poland, in the years 2011-2016. MATERIAL AND METHODS: A total of 1705 patients were diagnosed with fungal skin infection in the Mycological Laboratory, Dermatology Department of the Wroclaw Medical University. Of them, 163 were under 18 years of age. RESULTS: In 105 cases, dermatophytoses were detected. The collected specimens were examined using direct microscopy examination, staining, culture on specific media and PCR technique. The most common dermatophytes were Trichophyton rubrum and Trichophyton tonsurans (31.4% each), followed in the descending order by Trichophyton mentagrophytes (21.9%), Microsporum canis (13.3%) and Epidermophyton floccosum (1.9%). The most commonly affected body sites were glabrous skin of the trunk and extremities (41.7%), followed by face (22.2%), scalp (15.7%) and toe nails (14.8%). CONCLUSIONS: This study revealed the most common types of dermatophytoses and their pathogens in children in Southwestern Poland. In comparison to earlier data obtained from this region, new epidemiological trends have been revealed. We observed the shift towards anthropophilic dermatophyte infections and an increasing number of onychomycosis in children. Because of climatic variations, migration, and changing lifestyle practices, further studies on dermatophytoses are necessary to improve our knowledge on the epidemiology of fungal infections.

Sun protection among university students in Poland: a survey of awareness and attitudes.

AIM: The aim of the study was to evaluate students' awareness and attitudes related to skin protection against UVR and to check the hypothesis whether medical students differ from other faculty students in terms of health-promoting behaviour in photoprotection. MATERIAL AND METHODS: Internet-based survey containing 24 questions about students' knowledge and attitudes associated with sun exposure and photoprotection was carried out between March and May 2019. Two hundred and forty-three questionnaires were subject to statistical analysis. RESULTS: Out of 243, 149 (60.9%) respondents studied medicine and 95 (39.1%) were students of other faculties. 235 (96.7%) declared using sunscreen. 46 (18.9%) students applied it all year round and 116 (47.7%) only in the summer. Medical students chose more willingly products with SPF > 30 (p = 0.002). A hundred and fifty-nine (65.4%) students used sunscreen once when outdoors and 76 (31.3%) applied products more than once. Additional sun protective methods included wearing sunglasses (82.7%), hats or caps (62.1%) and avoiding sunlight around noon (46.5%). Students of the medical faculty avoided sun exposure statistically more frequently (p = 0.042) than students of other faculties. 28.4% had dermoscopy performed in the past. Medical students underwent dermoscopy examination statistically more frequently (p = 0.001) than students of other faculties. CONCLUSIONS: Medical students, probably due to their education, show increased pro-health attitudes associated with photoprotection. This indicates that they may be involved in creation and promotion of education activities to general public.

Impact of Childhood Psoriasis on Caregivers' Quality of Life, Measured with Family Dermatology Life Quality Index.

Psoriasis is a chronic skin disease, that often develops below the age of 18. In an integrated approach to childhood psoriasis, the impact of psoriasis on family members merits consideration. In this study, the impact of childhood psoriasis on caregivers (61 mothers and 4 fathers) of 65 children (age range 5-17.5 years) was measured using Family Dermatology Life Quality Index (FDLQI). Childhood psoriasis exerted a substantial impact on the QoL of caregivers (mean FDLQI 13.62±6.15 points). Caregivers rated routine household expenditure, time spent caring for the skin of the child, and emotional distress as the areas most impacted by psoriasis. The areas least affected were parent-child relationships, and caregivers' social lives. The impact of other people's reactions to the child's disease was rated as more severe by caregivers of girls compared with those of boys (p=0.004).

Epidemiology of dermatomycoses in southwest Poland, years 2011-2016.

INTRODUCTION: Superficial mycosis is one of the most common diseases worldwide, however its epidemiology is changing over time. AIM: To present epidemiological data of the skin fungal infections diagnosed in the years 2011-2016 in Lower Silesia. MATERIAL AND METHODS: A total of 11 004 patients with a clinically suspected superficial mycosis were investigated. Skin scrapings, nail clippings and plucked hair were examined with a direct microscopy, Wood's lamp and culture. Particular species were identified via polymerase chain reaction (PCR) examination. The lesions suspected for pityriasis versicolor were screened for Malassezia with Wood's lamp and direct microscopy. RESULTS: Dermatomycosis was diagnosed in 1653 (15.00%) patients with 1795 fungi identified. 1858 specimens were indicative of fungal infection including dermatophytes, yeasts and moulds. Out of 924 cases of dermatophytic infections (51.48%), Trichophyton rubrum accounted for the majority (71.75%) and was followed by Trichophyton tonsurans (16.77%). Among the yeasts (716; 39.89%), Candida spp. was the most common agent identified (521; 67.66%). The sites affected most often were toenails (956; 51.45%) and fingernails (319; 17.17%). In paediatric population the most common diagnosis was tinea corporis (60, 41.10%). CONCLUSIONS: Our study revealed that toenail onychomycosis remains the most common superficial mycosis and T. rubrum is the most common pathogen. However, in a longer period of observation, a decrease in the number of tinea capitis cases and an increase in infections caused by T. tonsurans were noticed. Observed changes indicate the need for continuing studies to detect the upcoming epidemiological trends.

Paraneoplastic systemic sclerosis associated with colorectal carcinoma.

A number of rheumatic disorders may appear as paraneoplastic syndromes, the most common being dermatomyositis or polymyositis. Systemic sclerosis is associated with a slightly increased risk of cancer, although its direct association with malignancies is controversial. We describe a case of a 57-year-old male with rectal adenocarcinoma and systemic sclerosis. Close temporal relationship between the initial presentation and parallel course of both conditions, as well as atypically rapid progression of systemic sclerosis symptoms, were observed in the reported case. The strict relation between these two conditions suggested that systemic sclerosis was a paraneoplastic syndrome rather than a concomitant morbidity in the presented patient. Current literature on systemic sclerosis coexisting with colorectal tumours is very limited, especially in the paraneoplastic setting.

Efficacy of diphenylcyclopropenone in alopecia areata: a comparison of two treatment regimens.

INTRODUCTION: Alopecia areata (AA) is a skin disease of unclear etiology. In AA, topical immunotherapy with diphenylcyclopropenone (DPCP) is considered the most effective treatment; however, the most common therapies give unsatisfactory results. AIM: To assess the efficacy of a topical application of a solution of DPCP based on the intensity, duration and number of exacerbations of AA and to compare the efficacy of two treatment regimens. MATERIAL AND METHODS: In this prospective study, 39 patients with AA were enrolled. Group A was treated at weekly intervals and group B at 3-week intervals. Hair loss was assessed by independent dermatologists and documented by photography and dermoscopy. RESULTS: After 6 months' therapy, hair regrowth greater than 50% was observed in 21 patients, while worsening, no regrowth, or regrowth of less than 50% was seen in 18 patients. Regrowth exceeding 50% of initial loss was observed in 12 of 17 patients with baseline hair loss < 50%, in 9 of 22 patients with severe alopecia, and in 4 of 9 patients with alopecia totalis. Both groups showed significant improvement with higher efficacy in group B (54%) than group A (46%). CONCLUSIONS: Treatment at longer intervals may be safer and more comfortable for patients; however, further research is required.

Durable remission of folliculotropic mycosis fungoides achieved with a combined topical treatment with cytarabine and carmustine.

Folliculotropic mycosis fungoides (MF) is an uncommon subtype of MF which has a more aggressive natural history and is more resistant to treatment than other forms of MF. In this article, an innovative method of treatment is presented. We describe a successful use of topical cytarabine combined with topical carmustine in a patient with a folliculotropic MF. Based on our patient history we suggest this method as an effective therapy option for patients with folliculotropic MF unresponsive to other forms of treatment.

Expression of CXCR4 and CXCL12 and their correlations to the cell proliferation and angiogenesis in mycosis fungoides.

INTRODUCTION: Chemokines play an important role in tumor growth, invasion and metastasis. The CXCR4/CXCL12 axis has been implicated in development of both solid tumors and hematological malignancies and is also relevant in the pathogenesis of the most common primary cutaneous T-cell lymphoma, mycosis fungoides (MF). AIM: To evaluate the expression of CXCR4 and CXCL12 in MF and to examine their associations with cell proliferation and angiogenesis. MATERIAL AND METHODS: The material for the study consisted of skin samples obtained from 56 patients with MF and 20 healthy volunteers. The expression of CXCR4 and CXCL12 was assessed by immunohistochemistry on the paraffin blocks and compared to the expression of angiogenesis marker (CD34) and proliferation indicators (Ki-67, AgNORs). RESULTS: The expression of chemokine CXCL12 and its receptor CXCR4 was significantly higher in MF than in the healthy skin (p < 0.001). There was no significant difference between early and advanced stages of MF. Similarly, there was no statistically important correlation between the expression of CXCR4/CXCL12 and angiogenesis and proliferation markers, however a significant correlation between CD34 and AgNORs expression was found (p < 0.001). CONCLUSIONS: The CXCR4/CXCL12 axis seems to play an important role in MF development in the early as well as in the advanced stages of the disease. Therefore, the CXCR4/CXCL12 axis seems to be an interesting potential target for the future strategies of new drug development, giving hope for more efficacious therapies for mycosis fungoides.

Atopic dermatitis: current treatment guidelines. Statement of the experts of the Dermatological Section, Polish Society of Allergology, and the Allergology Section, Polish Society of Dermatology.

Atopic dermatitis (AD) is a condition frequently encountered in medical practices across the country. More than 60% of children with AD are at risk to develop allergic rhinitis or asthma (the atopic march). Patients with AD have a unique predisposition to colonization or infection by Staphylococcus aureus. Treatments for AD need to rapidly control symptoms of the disease, improve quality of life and prevent exacerbations. Given the chronic and relapsing nature of the disease, therapies need to encourage good compliance and be well tolerated.

[Psoriasis as metabolic and cardiovascular risk factor]. / Luszczyca jako czynnik ryzyka schorzen metabolicznych I sercowo-naczyniowych.

Psoriasis is a chronic, inflammatory and proliferative disease which has a tendency to recur. Metabolic disturbances occur more often in patients with psoriasis in comparison to the general population. Due to the systemic inflammation and metabolic disturbances in psoriasis the risk of cardiovascular diseases is significantly higher. The data on higher cardiovascular risk which accompanies psoriasis suggest that every patient with psoriasis or psoriatic arthritis should be screened for metabolic disturbances. Patients with psoriasis should be under special care of general practitioner in order to prevent, diagnose and treat metabolic disturbances early.

Extra-Anogenital Giant Cutaneous Squamous Cell Carcinomas.

Extra-anogenital giant cSCCs are rare but have worse outcomes compared to smaller tumors. Prompted by limited data, the authors conducted a retrospective study to gather more information about giant cSCCs to optimize clinical care. We identified seven cases of giant cSCCs from a review of cSCC cases treated in the Unit of Dermatosurgery between 2016 and 2022. Most patients were male (85.71%) with a mean age of 80.29 ± 12.22 years. UV radiation was the most common risk factor (five cases) followed by smoking (three cases) and hidradenitis suppurativa (one case). Most giant cases were located in the head area (71.4%) and the diameter of lesions ranged from 6 to 18 cm. All patients corresponded to tumor stage T3, and 42.86% of patients had lymph node metastases. Surgical excision was the treatment of choice in most cases (85.71%), while a combination of cemiplimab and RP1 was used in some cases due to the ineffectiveness of treatment or contraindications to other therapies. The authors emphasize the importance of early detection and prevention of modifiable risk factors, such as UV radiation, and a multidisciplinary approach to treatment. Other therapies, including immunotherapy, may become increasingly important.