Skin cancer is the most common cancer in the Western world. In order to accurately detect the disease, especially malignant melanoma-the most fatal form of skin cancer-at an early stage when the prognosis is excellent, there is an urgent need to develop noninvasive early detection methods. We believe that polarization speckle patterns, defined as a spatial distribution of depolarization ratio o...

One of the most confounding characteristics, commonly seen in malignant, but even in benign melanocytic nevi, is represented by the regression phenomenon. The identification of regression, through dermoscopical observation, can be predictive of a tricky histopathological examination. Therefore, this feature should be an alert to a meticulous clinical, dermoscopical and histopathological correla...

OBJECTIVE To evaluate the prevalence of common acquired melanocytic nevi and its relationship with pigmentary characteristics and severe sunburns in children. DESIGN Cross-sectional study. SETTING Kaunas city, Lithuania (latitude of 55 degrees 55 minutes). PATIENTS A random sample of 484 children aged 1 to 2 years, 4 to 5 years, and 9 to 10 years and adolescents aged 14 to 15 years. INT...

INTRODUCTION Lack of diagnostic skill in cutaneous surgery may lead to erroneous and potentially detrimental therapies. This study compares the diagnosis and treatment in cutaneous surgery, including cryotherapy, between a dermatologist and family physicians. METHODS It is an observational, prospective study on a random sample of patients that consulted the dermatologist for candidate lesions...

Skin cancer is one of the most common cancers, and its early detection can have a huge impact on outcomes. Deep learning, especially convolutional neural networks, perform well in processing massive amounts data, image data classifying skin cancer. In this paper, networks are mainly used to diagnose classify 7 types lesions, including melanoma, basal cell carcinoma, melanocytic nevus, actinic k...

BACKGROUND Non-melanocytic skin tumors are rarely seen in pediatric patients; although they are mostly benign, they remain to be elucidated by histopathological examination. The objective of the study was to describe the epidemiology of non-melanocytic skin tumors in children attending to our dermatology department. METHOD The histopathologic studies of all skin punch and excisional biopsies ...

Skin tumors are the most frequent malignancies in the white population worldwide and have reached the proportion of an epidemic disease. Since non-melanocytic skin cancers can be cured when timely detected, given that still malignant melanoma may have good prognosis if early diagnosed, and considering the key role of primary care in cancer screening advising and implementation, the internationa...

Dermoscopy, in expert hands, increases accuracy, sensitivity and specificity in diagnosis of pigmented skin lesions of a single operator, compared with clinical examination. Simplified algorithmic methods have been developed to help less expert dermoscopists in diagnosis of melanocytic lesions. This study included 125 melanocytic skin lesions divided into melanocytic nevi, dysplastic nevi and t...

Skin cancer is the most common neoplasm in Brazil. Melanoma accounts for 4% of these neoplasms. Although childhood melanoma is rare, there is evidence that its incidence is increasing, placing it among the most important public health problems for the future. This work sought to conduct a retrospective review of cases of suspected melanocytic skin lesions in children, their diagnosis and manage...

The incidence of cutaneous malignant melanomas is growing faster than that of any other cancer and therefore posing a major heath threat worldwide. In melanocytic skin tumours, the feasibility of correlating a specific pathological stage with a corresponding genetic alteration provides a remarkable opportunity to study the multistep tumorigenesis model. This multistep melanoma tumorigenesis is ...