Cutaneous lesions of the nose

Skin diseases on the nose are seen in a variety of medical disciplines. Dermatologists, otorhinolaryngologists, general practitioners and general plastic and dermatologic surgeons are regularly consulted regarding cutaneous lesions on the nose. This article is the second part of a review series dealing with cutaneous lesions on the head and face, which are frequently seen in daily practice by a dermatologic surgeon. In this review, we focus on those skin diseases on the nose where surgery or laser therapy is considered a possible treatment option or that can be surgically evaluated

Responses to reciprocal recurrent selection and changes in genetic variability in IG-1 and IG-2 maize populations

This paper reports the effects of three cycles of reciprocal recurrent selection (RRS) on the means, genetic variances, and on the genetic correlations for several traits in the IG-1 and IG-2 maize (Zea mays L.) populations. Interpopulation full-sib progenies from cycle zero (C0) and from cycle 3 (C3) of RRS were evaluated in two locations. RRS was highly effective to improve the traits according the objectives of the program: grain yield and prolificacy increased significantly, while plant height, ear height, and ear placement decreased significantly. Genetic variances for all traits decreased significantly from C0 to C3, but the genetic correlations did not change consistently across the cycles of selection. The expected responses to the fourth cycle of RRS and the probability of selecting double-crosses from C3 that outperform those from C0 showed that the decreases in the genetic variances were not great enough to limit the continued improvement of the populations as well as the use of the improved populations as sources of inbred lines to develop commercial hybrids. However, if the magnitudes of the genetic variances continue to decrease, new sources of improved germplasm should be incorporated into both populations to allow the continued improvement of the interpopulation by RRS

Reconstrução de couro cabeludo após mordedura canina

OBJETIVO: Avaliar a conduta de reconstrução imediata das mordeduras caninas em couro cabeludo. MÉTODO: Foram avaliados prospectivamente 55 pacientes vítimas de mordedura canina na cabeça, atendidos na emergência do Serviço de Cirurgia Plástica, Hospital Regional da Asa Norte (HRAN, Brasília-DF) de janeiro de 1999 a dezembro de 2001. RESULTADOS: Nove (16,4%) dos 55 pacientes apresentavam lesões extensas de couro cabeludo, dos quais sete eram menores de 10 anos. Nesses nove casos, o tratamento mais utilizado foi a sutura direta (77,8%), seguido pelo enxerto do couro cabeludo avulsionado em 22,2% dos casos. Não houve infecção nos casos estudos. CONCLUSÕES: O fechamento primário das lesões em couro cabeludo após mordeduras caninas mostrou-se seguro

Who Really Needs a Rhinoplasty?

ven if the indication for rhinoplasty is to do with nasal function, the patient undergoing rhinoplasty usually still considers cosmetic aspects. Why patients agree to put themselves in discomfort, accept the risk, and shoulder the cost of a procedure, the main aim of which is an improvement in physical appearance, remains poorly understood. In the majority of cases, there is no direct correlation between the willingness to have the procedure and objective measures of nasal deformity. Likewise, psychometric measurements bear little relationship to how deformed the patient's appearance really is. For those cases where cosmetic considerations predominate, the degree of distress is greater than in those having the procedure solely to improve nasal function. Patients' satisfaction after rhinoplasty undertaken to address both functional and cosmetic needs depends more on aesthetic result than on improvement in function. Since patients undergoing rhinoplasty are often preoccupied with deformities that others would neither notice nor be concerned about, it shows clearly that this group has already undergone alterations in the way they think. Candidates for rhinoplasty are unhappy with their looks than those contemplating other cosmetic procedures, and each time they look in the mirror, they recall their dissatisfaction, a situation which has generally already begun at the age of puberty. In 80% of cases, the motivating factor is a wish for an alteration in facial appearance or the experience of seeing someone else benefit from rhinoplasty