Rosai-Dorfman disease (RDD) is a benign histiocytosis that rarely manifests as a purely cutaneous form. Its differential diagnosis and treatment can pose a challenge to both clinicians and pathomorphologists. We present the case of a 69-year-old woman with cutaneous RDD presenting as multiple nodules on the right thigh who was treated with low-dose methotrexate weekly for [ 1 year with a partial response.
IntroductionSuperficial mycosis is one of the most common diseases worldwide, however its epidemiology is changing over time.AimTo present epidemiological data of the skin fungal infections diagnosed in the years 2011–2016 in Lower Silesia.Material and methodsA 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.ResultsDermatomycosis 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%).ConclusionsOur 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.
Introduction: Biologic agents form an indispensable part of modern therapeutic regimens for the treatment of severe inflammatory diseases, especially in the fields of rheumatology, dermatology and gastroenterology. They are favoured by both physicians and patients due to their high effectiveness, good patient tolerance and safety. However, interference in the regulation and dynamics of inflammatory cytokines can on occasion lead to an onset of a dermatological condition also known as paradoxical skin reaction. Here, we present a case of paradoxical skin reaction induced by certolizumab. Case Report: A young woman with ankylosing spondylitis developed a severe and complex cutaneous reaction after 6 months of otherwise successful treatment with certolizumab. The diagnosis of a rare paradoxical cutaneous reaction post anti-tumour necrosis factor alpha treatment was based on overlapping features of pyoderma gangrenosum and palmoplantar pustular psoriasis. Alopecia developed and there was also nail involvement. Treatment proved to be challenging as the disease did not remit after the patient ceased treatment with certolizumab. The patient was started on a combination of secukinumab and methotrexate to control the symptoms, with a promising outcome. Conclusion: Paradoxical skin reactions are an emerging clinical entity that require further research in order to establish risk factors and best personalized treatment.
Background/Aim: The head is a body site with a particular predisposition to skin malignancies due to exposure to UV radiation. The aim of the study was to better elucidate the characteristics of skin lesions that develop on the scalp. Patients and Methods: A retrospective review of all excised and histologically assessed lesions of the scalp at a single dermatosurgery unit throughout a fiveyear period was performed. Demographic features and lesion characteristics were compiled and analyzed. Results: Among 5,601 procedures during the analyzed period, 293 were performed on lesions on the scalp area (5.2%) with a mean patient age of 66±19.7 years. The defects were closed, mainly using primary closure, followed by skin grafts, and, least often, flaps (65.1%, 28.5%, 4.9%, respectively). Two thirds of the excised scalp lesions were histologically confirmed as malignant scalp tumors (mostly basal cell carcinomas followed by squamous cell carcinomas). Conclusion: The vast majority of scalp lesions referred for surgical procedures appeared to be malignant. Therefore, dermatologists should pay special attention to the scalp by examining it thoroughly, as the lesions may be hidden by hair. The head is a body site with a particular predisposition to skin malignancies (1-3). This is due to its frequent exposure to ultraviolet radiation (UV). Tumors in the area of the scalp may be overlooked due to long hair or their occipital or postauricular location. Additionally, UV exposure of the frontal area as well as other scalp areas in patients with androgenetic alopecia is very high (1, 3). This study aimed to provide the characteristics of a group of subjects treated at the Dermatosurgery Unit of the Department of Dermatology, Venereology and Allegrology of Wroclaw Medical University in Poland for scalp lesions with particular reference to age, sex, amount, location and surgical methods of treatment.
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.
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