Cervical nodular fasciitis in a 10-year-old girl: a case report of a rare condition

Nodular fasciitis (NF) is a benign fibroblastic proliferation that usually involves  superficial fascia in the subcutaneous tissue or muscle. The rapid growth, high  cellularity and mitotic activity can simulate sarcoma. Thus, as clinical and morphologic characteristics are similar to those of malignant tumours, this entity is often  misdiagnosed, with a few cases described in the literature. We present a case of nodular fasciitis involving the retropharynx and hypopharynx of a 10-year-old girl and discuss the importance of considering this rare diagnosis in different soft tissue masses.Keywords: excisional biopsy, histology, nodular fasciiti

Artrite-encefalite caprina (CAE): prevenção e controle.

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Levantamento detalhado de solos da área da Universidade Federal Rural do Rio de Janeiro.

O trabalho foi realizado em uma área de aproximadamente 2.500 hectares situada na Baixada Fluminense, onde se acha localizado o campus da Universidade Federal Rural do Rio de Janeiro, bem como diversas dependências do Instituto de Pesquisas e Experimentação Agropecuária do Centro-Sul (IPEACS). Para o estudo pedológico da área foi utilizado levantamento do tipo detalhado, com emprego de fotografias aéreas, sendo que a classificação dos solos foi executada ao nível de série de solo. A delimitação das unidades (séries de solos) foi realizada sobre ampliações, para a escala aproximada de 1:12.000, de fotografias aéreas na escala aproximada de 1:25.000. Foram identificadas e descritas sete series de solos que receberam denominações: Itaguaí, Ecologia, Aprendizado, Agrostologia, Silvicultura, Zootecnia e Rosada. Três variantes das series Silvicultura, Ecologia e Guandú foram, igualmente, identificadas e descritas. Além dessas, foi descrita uma componente de um complexo de solos, no qual se acha também incluída a serie Seropédica descrita anteriormente por Mendes et al. (1954)..

Third-order nonlinear optical response and photoluminescence characterization of tellurite glasses with different alkali metal oxides as network modifiers

Studies of the third-order nonlinear optical properties in TeO(2)-MO-R(2)O glasses with three different alkali metal oxides R(2)O (R - Li, Na, K) as network modifiers and two network intermediates MO (M - Zn, Mg) are reported. The influence of such modifiers and intermediates on the nonlinear optical properties of these glasses was investigated using the standard Z-scan and the thermally managed Z-scan techniques under femtosecond pulse excitation at 800 nm. For different modifiers and intermediates, the nonlinear refraction indices n(2) of these glasses varied in the range 1.31-2.81 (x10(-15) cm(2)/W). It was found that n(2) increases as the ionic radius of both network modifiers and intermediates decreases. Furthermore, the measurements show that the contribution from thermo-optical effects to the nonlinear refraction index is negligible for all of the studied glass compositions. In addition, the effect of modifiers and intermediates in the formation of localized states in the vicinity of the optical bandgap was also studied through photoluminescence experiments. These experiments revealed the presence of two emission bands (red and blue) originating from these localized states that can be populated after optical excitation and subsequent relaxation