André Cesar Antiori Freire Pessanha

Diagnostic index of cutaneous neoplasia in a campaign to fight skin cancer at a dermatologic service located in the Brazilian State of São Paulo’s midlands

Introduction: Skin cancer is the most common type of cancer in the world. It is classified into melanoma (corresponding to 4% of cases) and non-melanoma types: basal cell carcinomas (70 to 80% of cases) and squamous cell carcinoma (25% of cases). The Brazilian Society of Dermatology conducts the National Campaign Against Skin Cancer on a yearly basis, aiming at diagnosing and providing early treatment to the neoplasia. Objective: To demonstrate the incidence of lesions suspicious of skin cancer in selected patients originated from the 2016 National Campaign Against Skin Cancer, at the dermatologic clinic of a university hospital located in the Brazilian State of São Paulo’s midlands. Methods: Two hundred and thirty patients were examined, of which 24 were selected with 22 undergoing biopsy of the suspected lesions. Results: Sixteen basal cell carcinoma cases, one squamous cell carcinoma and one melanoma were confirmed through anatomopathology. Conclusions: Notwithstanding the small sample, it was possible to conclude that the results found are compatible with those of the literature reviewed. It is of paramount importance to carry out the campaign as a way to streamline the population’s access to a dermatologist, which results in the early diagnosis and treatment of skin cancers.

Analysis of diagnostic and therapy accuracy index based on non-melanona's skin cancer dermoscopy

Introduction: Non-melanoma skin cancer is among the most frequent neoplasms in Brazil and is deemed a public health problem. Initial diagnosis is based on clinical suspicion and includes dermoscopy. Confirmation is carried out via histological analysis. Dermoscopy also contributes to the demarcation of tumor safety margins. Objective: To analyze the accuracy of dermoscopy in the diagnosis of non-melanoma skin cancer and its effectiveness in defining the lateral margins of these tumors in excisional biopsies. Methods: Comparison of the dermoscopy-based diagnostic hypothesis with the final histological outcome and involvement of lateral margins. Results: The data relating to a total of 70 lesions suspicious of non-melanoma skin cancer arising from a group of 50 patients were evaluated from 2015 to 2017. The comparison of the diagnostic hypothesis with the final histological outcome after excisional biopsy, indicated success rates of 79.6% for suspected cases of basal cell carcinoma and 23.8% for squamous cell carcinoma. Safety margins were observed in 74% of basal cell carcinomas and in 60% of squamous cell carcinomas. Conclusions: The diagnosis of non-melanoma skin cancers depends on experienced dermatologists and pathologists, with the interaction between these professionals being crucial. Dermoscopy has contributed in a more significant way to the diagnosis of basal cell carcinoma when compared to that of squamous cell carcinoma.

Cutaneous Field Cancerization on a Vitiligo Area

Vitiligo is the most commom depigmentary disorder of the world, with probably an autoimmune cause. Studies reveal the presence of genes likely the emergence of Vitiligo, many of them involved in the synthesis of proteins related to the recognition and killing of melanocytes. The interaction of these genes may suggest protection and good prognosis for Vitiligo patients in relation to skin cancer. We describe the case of a patient with field cancerization in areas affected by Vitiligo, counteracting, therefore, the usual.

Pyogenic granuloma simulating malignant tumor in the scalp

Pyogenic granuloma or lobular capillary hemangioma is a benign skin and mucous membranes lesion whose etiology is not yet explained. The authors report an atypical and exuberant clinical case of this benign dermatologic condition, clinically simulating malignancy.