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Malignant melanoma. A current problem.
Rodrigo, F G; Clínica Dermatológica Universitária, Hospital de Santa Maria, Lisboa.; Correia, M PMalignant Melanoma is a tumor of high malignancy which incidence has been shown to increase dramatically during last decades. The genesis of the tumor is uncertain, however the cutaneous fair complexion, the number and type of pigmented nevei and acute intermittent sun exposure with sunburn may play a significant role in its development. Histopathology of suspicious lesions is obligatory as diagnostic proof and...
Skin aging. Physiopathology and clinical perspective.
Rodrigo, F G; Clínica Dermatológica Universitária, Hospital de Santa Maria, Lisboa.; Mayer-da-Silva, A J; Freitas, J PThe main structural and functional alterations observed during skin ageing are reviewed, considering the intrinsic process of senescence and the damage induced by chronic exposure to actinic radiation. In photo-ageing the importance of skin type is stressed, concerning its capacity to tan in order to get protection against radiation. Finally some inflammatory, degenerative and neoplastic skin diseases associate...
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