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Neonatal gastrointestinal emergencies are caused by a diverse set of primarily congenital entities that may affect the upper or lower gastrointestinal tracts, and occasionally both. Although a diagnosis can sometimes be made on prenatal imaging, more commonly patients present after birth and require prompt diagnosis to facilitate timely treatment. Imaging plays a central role in the accurate diagnosis of these entities and typically consists of an initial abdominal series followed by either an upper gastrointestinal series or contrast enema. The authors review the most common neonatal gastrointestinal emergencies and provide a step-by-step approach to the accurate imaging diagnosis., (Copyright © 2017 Elsevier Inc. All rights reserved.)

The imaging evaluation of the neonate in respiratory distress has been described since the most early days of pediatric radiology but advances in diagnosis and treatment have changed the patient population presenting with these conditions and altered the imaging findings. In this article, the range of conditions that cause neonatal respiratory distress is depicted, including congenital lung malformations and lung disease in both preterm and full-term infants. An updated approach to the imaging of these conditions is reviewed, with a focus on changes that have resulted from advances in treatment and diagnosis., (Copyright © 2017 Elsevier Inc. All rights reserved.)

In the past decade, with improved surgical technique and knowledge of immunosuppression, pediatric lung and heart transplantation have been established as viable therapeutic interventions for pediatric patients with end-stage cardiopulmonary disease from various underlying congenital and acquired disorders. Although outcomes for pediatric patients are similar to those for adult patients, thoracic organ transplantation in this special age group carries unique challenges for preoperative and postoperative imaging evaluation. The article provides an up-to-date review of the postoperative transplant anatomy, imaging techniques, and complications of pediatric lung and heart transplantation., (Copyright © 2016 Elsevier Inc. All rights reserved.)

The anatomy, normal postoperative radiological appearance, and imaging features of common postoperative complications of pediatric abdominal transplants are reviewed, including renal, liver, and intestinal transplants. Doppler ultrasound is the mainstay of imaging after transplantation. Computed tomography (CT) and CT angiography, MR imaging and magnetic resonance (MR) angiography, MR cholangiopancreatography, conventional angiography, and nuclear medicine imaging may be used for problem-solving in pediatric transplant patients. Accurate and timely radiological diagnosis of transplant complications facilitates appropriate treatment and minimizes morbidity and mortality., (Copyright © 2016 Elsevier Inc. All rights reserved.)