Dermoscopy of pigmented lesions

University of Miami, كورال غيبلز، فلوريدا, Florida, United States
Journal of the American Academy of Dermatology (Impact Factor: 4.45). 02/2005; 52(1):109-21. DOI: 10.1016/j.jaad.2001.11.001
Source: PubMed


Dermoscopy is an in vivo method for the early diagnosis of malignant melanoma and the differential diagnosis of pigmented lesions of the skin. It has been shown to increase diagnostic accuracy over clinical visual inspection in the hands of experienced physicians. This article is a review of the principles of dermoscopy as well as recent technological developments.

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    • "São usadas sete características da imagem divididas em critérios major (com peso de 2) e minor (com peso de 1) tendo sendo esta soma o valor máximo de 7. Se forem obtidos menos de 3 pontos a lesão é considerada benigna, no caso de serem 3 ou mais pontos a lesão tem uma probabilidade elevada de ser um melanoma. [5] [6] [7]. Um exemplo desta classificação encontram-se na Figura 8, na qual podemos observar a pontuação máx- ima. "
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    ABSTRACT: Artigo de revisão sobre cancro da pele e investigação biomédica ao nível do processamento de imagem digital.
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    • "Generally, there are 2 general clinical diagnosis approaches for malignant melanoma which are both based of characteristics such as color, shape, dimension and texture: ABCD rule and 7-points checklist [7], [8]. Clinical diagnosis approaches also depend on the features like asymmetry, border irregularity , shape and dimension properties. "
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    ABSTRACT: Accurate identification and extraction of region of interest (ROI) in dermoscopy images play crucial role in diagno-sis, and treatment of melanoma and other skin diseases. Human interpretation of dermoscopy images is not only tedious and time consuming task but also subjective. This fact has attracted numerous attentions for developing automated assessment tools. In this paper, we present lesion detection schemes in dermoscopy images on mobile platforms. The systems are based on density based clustering (DBSCAN) and fuzzy c-means (FCM) clustering and developed for Windows Phone and Android environments. We tested the systems on dermoscopy images and ROIs are successfully extracted. The proposed systems may improve the management of melanoma by providing automatic early moni-toring of skin lesions that will assist clinical investigation.
    IEEE International Symposium on Medical Measurement and Applications; 06/2014
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    • "Currently this is controversial that if curettage is necessary before Mohs surgery or not. Some believe that curettage determine the tumor limitations better and some other believe that curette falsely estimates the tumor margin larger and thus makes the defect resulted from the operation more.[4] "
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    ABSTRACT: Mohs micrographic surgery (MMS) is a technique for the treatment of cutaneous malignancies. Subtle determination of tumor margin would end to fewer stages of surgery. Our aim was to compare these three ways for determining tumor extension before initiation of MMS, examination with the naked eye, dermoscopy and curettage. Sixty patients who had basal cell carcinoma (BCC) in head and neck area were randomized in three groups (curettage, dermoscopy and examination with the naked eye). Each group encompassed twenty patients. The total number of resection stages in MMS was recorded for each patient. Demographic data of the patients and the total number of resection stages in MMS were statistically analyzed. Based on analysis of variance (ANOVA) test results, there was no significant difference for total number of stages in statistical point of view between three groups (P value = 0.1). In this research, the Pearson correlation coefficient showed that there is a direct relation between the age and resection stages (r = 0.19, P value = 0.04). The Chi-square test showed no differences between three groups in age, residence and radiotherapy history.
    03/2013; 2(318):2. DOI:10.4103/2277-9175.107961
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