ABSTRACT Objective To stratify ultrasound samples in a pediatric population undergoing evaluation for acute appendicitis to examine the variability in cecal appendix diameter, in different age groups, and to determine whether there is a prevalent value for each age group. Methods A retrospective cross-sectional study with 196 children aged 0 to 15 years. Data were extracted from reports of ultrasound examinations carried out between 2008 and 2015. Children with sonographic diagnosis of appendicitis or other signs of periappendiceal inflammation were excluded. Results The evaluation of the anteroposterior measurement of the cecal appendix revealed a mean diameter of 4.14mm (standard deviation: 0.93mm; 95%CI: 3.86-4.14). Cecal appendix diameter did not differ significant between age groups. Conclusion Evaluation of the anteroposterior diameter of the cecal appendix in centimeters in a sample of 196 children aged 0 to15 years revealed a mean diameter of 4.14mm (standard deviation, 0.93mm. There were no significant differences in cecal appendix diameter following stratification by age. Results indicate a single value can be adopted for mean cecal appendix diameter in pediatric populations.

Objetivo Descrever uma série de casos em que o diagnóstico pré-operatório de complicações intestinais secundárias à ingestão acidental de corpos estranhos da dieta foi realizado por tomografia computadorizada com multidetectores (TCMD), enfatizando-se os achados complementares de técnicas de renderização volumétrica (VRT) e reconstruções curvas multiplanares (MPR). Materiais e Métodos Foram analisados, retrospectivamente, cinco pacientes com complicações intestinais (perfuração e /ou obstrução) secundárias à ingestão insuspeita de corpos estranhos da dieta confirmadas cirurgicamente, consecutivamente atendidos em nosso serviço entre 2010 e 2012. Foram analisados dados demográficos, clínicos, laboratoriais e radiológicos. VRT e MPR foram aplicadas subsequentemente. Resultados Em todos os casos o diagnóstico pré-operatório de complicações intestinais foi realizado. Em um caso um corpo estranho não foi identificado como fator causal, e o uso de técnicas complementares facilitou sua identificação retrospectiva. Em todos os casos essas técnicas favoreceram melhor representação de toda a extensão dos corpos estranhos em um único corte, contribuindo para a avaliação da morfologia desses corpos estranhos. Conclusão Embora a aplicação de técnicas complementares não tenha determinado impacto direto sobre o diagnóstico na maioria dos casos desta série, elas podem propiciar uma melhor representação da morfologia do corpo estranho em um único corte.

Objective The present study was aimed at describing a case series where a preoperative diagnosis of intestinal complications secondary to accidentally ingested dietary foreign bodies was made by multidetector-row computed tomography (MDCT), with emphasis on complementary findings yielded by volume rendering techniques (VRT) and curved multiplanar reconstructions (MPR). Materials and Methods The authors retrospectively assessed five patients with surgically confirmed intestinal complications (perforation and /or obstruction) secondary to unsuspected ingested dietary foreign bodies, consecutively assisted in their institution between 2010 and 2012. Demographic, clinical, laboratory and radiological data were analyzed. VRT and curved MPR were subsequently performed. Results Preoperative diagnosis of intestinal complications was originally performed in all cases. In one case the presence of a foreign body was not initially identified as the causal factor, and the use of complementary techniques facilitated its retrospective identification. In all cases these tools allowed a better depiction of the entire foreign bodies on a single image section, contributing to the assessment of their morphology. Conclusion Although the use of complementary techniques has not had a direct impact on diagnostic performance in most cases of this series, they may provide a better depiction of foreign bodies' morphology on a single image section.

A perfuração espontânea da vesícula biliar é uma complicação grave e pouco frequente da colecistite aguda, que exige diagnóstico rápido e preciso; a formação concomitante de coleções intra-hepáticas nesses casos é rara. O presente relato enfatiza a importância dos exames de imagem nesse contexto, demonstrando sinais ultrassonográficos e tomográficos típicos para o diagnóstico.

Spontaneous perforation of gallbladder is a severe and infrequent complication of acute cholecystitis that requires early and accurate diagnosis. Concomitant development of intrahepatic collections is rarely observed in such cases. The present report emphasizes the relevance of imaging studies in this setting, describing the typical sonographic and tomographic findings for the diagnosis of such condition.