Congenital midline nasal masses are rare anomalies that occur in about one in 20,000-40,000 live births. The most common are dermoid/epidermoid tumors, nasal cerebral heterotopias (nasal gliomas), and nasal encephaloceles; some have an actual or potential central nervous system connection. Nasal gliomas are CNS masses of neurogenic origin which have lost their intracranial connections and present as an obvious external or intranasal mass at birth without associated surgical symptoms. Careful evaluation is required to confirm the diagnosis and appropriate management. The interpretation of CT and MR images can be difficult but is useful in differentiating nasal gliomas from other congenital nasal masses. The presence of a fibrous stalk may be associated with cranial defects and CSF leak. Excisional biopsy allows histopathologic diagnosis and is the definitive treatment. They are benign lesions, and recurrences are rare, so conservative cosmetic surgical techniques should be chosen for gliomas where there is no proven intracranial extension. The authors report an illustrative nasal glioma case in a one-year-old male infant with extranasal and intranasal components, and discuss the therapeutic options.

POSTERSclinical features of ACPs in Japan is very limited. Here, we performed a prospective study to evaluate the prevalence and clinical features of ACPs.

Acoust ic rhinometry, rhinomanometry and Inspiratory Peak Nasal Flow (IPNF) are used in order to objectively assess nasal patency. These are expensive not very practical tests, except for IPNF, which is a fast, simple and low cost method.Objective: To assess IPNF in healthy individuals complaining of nose obstruction caused by allergic rhinitis.Method: IPNF use in 78 individuals with and without rhinitis symptoms. Study design: Contemporary cross-sectional cohort.Results: IPNF showed significant results for nasal obstruction, rhinorrhea, pruritus, sneezes and tearing (p < 0.001). There was no correlation between the presence of nasal septum deviation and IPNF (p = 0.561). We found a positive correlation between IPNF and the Visual Analogue Scale (VAS) for nasal obstruction (p = 0.002). In the multiple linear regression model, there was a statistical significance between the values found in IPNF with allergic rhinitis and age (p = 0.005 and p = 0.023 respectively). Conclusion:IPNF proved to be a reliable method to detect changes in nasal patency, by obstructive causes as well as inflammatory causes, with an acceptable level of statistical significance, simple, easy to handle, inexpensive and reproducible. Braz J Otorhinolaryngol. 2011;77(4):473-80. BJORL ORIGINAL ARTICLE

Summary Introduction: The measurement of the peak nasal inspiratory flow (PNIF) is easily and swiftly obtained, but hardly spread in Brazil though. On the other hand, the visual analogue scale (VAS) for nasal obstruction is a subjective measurement that can also be used. Objective: To evaluate the correlation between PNIF and VAS for nasal obstruction before and after occurring a change in the nasal patency caused by the topic vasoconstriction. Study outline: Non-randomized clinical and experimental study. Method: 60 volunteers, including patients, doctors, nurses and administrative assistants of the institution were submitted to PNIF and VAS examinations before and after the nasal vasoconstriction with oxymetazoline chloride at 0.05%. Results: The average value found for pre-vasoconstriction VAS was 4.1 and, for post-vasoconstriction, it was 2. This represented a 44% range between the measurements. With regard to PNIF values, the average found when measuring the vasoconstriction was 151 l/min and 178 l/min after vasoconstriction, showing a 20% increase. At the pre-vasoconstrictor moment, increasing a point in average VAS value corresponds to a 3.8% decrease in average PNIF value. In the post-vasoconstriction, each increase of a point in average VAS value corresponds to a 4.5% decrease in average PNIF value. Conclusion: There was an important correlation between the objective measurement of the nasal obstruction through PNIF and the subjective measurement provided by VAS before nasal vasoconstriction. A similar correlation could also be observed after using the decongestant.

À mulher da minha vida, Aligi, pelo apoio incondicional em todos os momentos, principalmente nos de incerteza, muito comuns para quem tenta trilhar novos caminhos.Sem você nenhuma conquista valeria a pena... Aos meus queridos filhos, Pedro e Gabriel, pelo imenso amor e pureza que inundou e modificou a minha vida, tornando-a mais alegre e com mais objetivos.... Aos meus paisUbiratan e Édina, que dignamente me apresentaram a importância da família e o caminho da honestidade e persistência, sempre com serenidade e bom senso... Aos pacientes que sofrem com obstrução nasal, pois sem a contribuição valiosa dos mesmos, esse trabalho não teria se desenvolvido, e um dia, venha a ser útil para ajudar a minimizar o sofrimento. AGRADECIMENTOS Agradeço primeiramente a Deus pela saúde e oportunidade de estudar, aprender e pesquisar... Ao Prof. Ericson Bagatin, o meu reconhecimento pela dedicação em me orientar neste trabalho. Manifesto meu respeito e admiração pela sua serenidade, capacidade de análise do perfil de seus alunos, e pelo seu Dom no ensino da Ciência, inibindo sempre a vaidade em prol da simplicidade e eficiência.Á Professora Wilma, pela forma como me conquistou e incentivou a pesquisa, sem medir esforços para transpor as dificuldades encontradas, mostrando o caminho e as vezes pegando na mão para ensinar...