M. A. G. Mattoso Maia

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BACKGROUND Striae occur in over 70% of pregnant women and tend to develop after 25 weeks of gestation. Despite the fact that their etiology has not yet been fully understood, it is accepted that a combination of genetic factors, endocrine alterations and mechanical stretching of skin play a significant role. Due to different results reported in the(More)
CONTEXT AND OBJECTIVE Cutaneous melanoma represents around 3% of all skin tumors. About 20% of such patients will have advanced disease and will die before reaching five years of survival. The aim of this paper was to describe the clinical and histopathological variables and their correlations. DESIGN AND SETTING Retrospective, descriptive,(More)
Brazil is a country of continental dimensions with a large heterogeneity of climates and massive mixing of the population. Almost the entire national territory is located between the Equator and the Tropic of Capricorn, and the Earth axial tilt to the south certainly makes Brazil one of the countries of the world with greater extent of land in proximity to(More)
This study presents new data about the cross-language application of the Late Closure principle (Frazier, 1978), whose universality was put in question by data from Spanish (Cuetos & Mitchell, 1988). Using sentences containing a restrictive relative clause unambiguously modifying the first or the second noun of a complex NP (os cúmplices do ladrão/o(More)
The existence of an upper bound for the error probability as a function of I-divergences between an original and an approximating distribution is proved. Such a bound is shown to be a monotonic nondecreasing function of the I-divergences, reaching the Bayes error probability when they vanish. It has been shown that if the closeness between the original and(More)
BACKGROUND The social reality of the albino needs to be more studied in Brazil, as myths and social segregation regarding this illness are likely to be found in the country, with psychosocial and medical implications. OBJECTIVE As this subject has not been referenced in previous scientific articles in Brazil, this research intends to evaluate the quality(More)
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 clinical(More)
Clinicopathologic correlation is essential for diagnostic accuracy. Even though interdependent, dermatology and dermatopathology have become apart. In order to minimize this distance, we have performed ex vivo dermoscopic examinations. We performed comparative in vivo and ex vivo dermoscopy study followed by histopathological mapping. We observed that ex(More)