Keratosis Actinic
Mostrando 13-20 de 20 artigos, teses e dissertações.
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13. Evaluation of the therapeutic results of actinic keratosis treated with topical 5% fluorouracil by reflectance confocal laser microscopy: preliminary study
Abstract Topical treatment for actinic keratosis with 5% fluorouracil has a recurrence rate of 54% in 12 months of follow-up. This study analyzed thirteen actinic keratoses on the upper limbs through confocal microscopy, at the time of clinical diagnosis and after 4 weeks of treatment with fluorouracil. After the treatment was established and evidence of cli
An. Bras. Dermatol.. Publicado em: 2015-06
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14. Histopathological analysis of the therapeutic response to cryotherapy with liquid nitrogen in patients with multiple actinic keratosis
Abstract Actinic keratoses are premalignant lesions of the skin caused by excessive sun exposure. Lesions may become mainly squamous cell carcinoma. Cryotherapy with liquid nitrogen is one of the main treatments. In order to evaluate the response of actinic keratosis to cryotherapy by histopathology, two lesions were selected in each of 14 patients with mult
An. Bras. Dermatol.. Publicado em: 2015-06
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15. Estudo da pele do campo cancerizável antes e após a terapia fotodinâmica através dos métodos clínicos, histopatológicos e imunohistoquímicos / Clinical, histopathological and immunohistochemical assessment of human skin field cancerization before and after photodynamic therapy
O conceito de campo de cancerização, em dermatologia, sugere que a pele fotodanificada tem maior potencial para o desenvolvimento de neoplasias cutâneas. A terapia fotodinâmica (TFD) é um método não invasivo para o tratamento de queratoses actínicas (QA) múltiplas, possibilitando a abordagem de todo o campo. Vinte e seis pacientes com múltiplas QAs
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/11/2011
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16. Genomic instability in human actinic keratosis and squamous cell carcinoma
OBJECTIVE: To compare the repetitive DNA patterns of human actinic keratoses and squamous cell carcinomas to determine the genetic alterations that are associated with malignant transformation. INTRODUCTION: Cancer cells are prone to genomic instability, which is often due to DNA polymerase slippage during the replication of repetitive DNA and to mutations i
Clinics. Publicado em: 2011
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17. A instabilidade genômica como fator prognóstico e diagnóstico na progressão de queratose actínica para carcinoma espinocelular humano / Genomic instability as a prognostic and diagnostic factor on the progression of human actinic keratosis, to squamous cell carcinoma
Genomic instability has been widely used to characterize cancer cells. Genetic alterations in human actinic keratosis (AK) and squamous cell carcinomas (SCC) were investigated by the random amplified polymorphic DNA (RAPD) method, and microsatellite analysis. DNA was obtained from Brazilian patients diagnosed and treated in the School of Medicine of Universi
Publicado em: 2007
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18. Acitretin therapy for chemoprophylaxis of skin cancer in renal transplant recipients: clinical, histological and immunohistochemical evaluation. / Uso de acitretina para prevenção e tratamento de câncer de pele em transplantados renais: avaliação clínica, histológica e imuno-histoquímica
Renal transplant recipients have an increased incidence of actinic keratosis and skin cancer. In order to examine the chemoprophylatic effects of low-dose acitretin on skin cancer development we submitted 13 renal transplanted patients to acitretin therapy (20 mg/day) for 12 month. The patients were assessed at monthly intervals during the first 6 months and
Publicado em: 2003
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19. HistoquÃmica e anÃlise digital de imagens em neoplasias cutÃneas
This work evaluated alterations in the expression of carbohydrates and the density of tumour cells and Langerhans cells (LC) using lectin histochemistry, immunohistochemistry and computer image analysis in neoplasic cutaneous tissues. Biopsies of basal cell carcinoma (BCC, n=35), epidermoid carcinoma (EpC, n= 18), tricoepithelioma (TE, n=12), keratoacanthoma
Publicado em: 2003
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20. Identification and characterization of a retinoid-induced class II tumor suppressor/growth regulatory gene
Retinoids, synthetic and natural analogs of retinoic acid, exhibit potent growth inhibitory and cell differentiation activities that account for their beneficial effects in treating hyperproliferative diseases such as psoriasis, actinic keratosis, and certain neoplasias. Tazarotene is a synthetic retinoid that is used in the clinic for the treatment of psori
The National Academy of Sciences.