Alison Evans

A Timetable for the Radiologic Features of Fracture Healing in Young Children

OBJECTIVE Fracture dating significantly shapes decisions in child protection. With a dearth of primary evidence underpinning fracture dating in children, we examined the key radiologic features of fracture healing and their timelines. MATERIALS AND METHODS Digital radiographs of children younger than 72 months old with accidental long bone fractures of known timing were reviewed independently by three pediatric radiologists blinded to the age of the fractures. Six radiologic features of fracture healing were evaluated: soft-tissue swelling, periosteal reaction, soft callus, hard callus, bridging, and remodeling. Interobserver agreement was assessed using kappa analysis. RESULTS Two hundred twenty-eight films of 82 fractures in 63 children (mean age, 4.8 years) were assessed. Soft-tissue swelling was identified by two or more radiologists in 59% of the radiographs at days 1-2 after fractures, and prevalence sharply declined thereafter. Periosteal reaction was first seen at day 5 and was present in 62% of the films obtained between 15 and 35 days after the fracture. Soft callus was first seen at day 12 and was prevalent in 41% between 22 and 35 days. Hard callus and bridging began at day 19, increasing to 60% prevalence from 36 days onward. Remodeling was observed only in fractures 45 days old or more. Kappa scores were between 0.55 and 0.80 overall, with greater agreement when there was no plaster cast. CONCLUSION The results of this study show that fractures in young children may be dated as acute (< 1 week), recent (8-35 days), or old (≥ 36 days) on the basis of the presence of six key radiologic features in combination. Furthermore, good interobserver agreement suggests these results are reproducible.

Imaging features of primary malignant rhabdoid tumour of the brain.

Abstract. Primary malignant rhabdoid tumour of the central nervous system is a rare neoplasm affecting children. We present a pathologically proven case, which was initially referred to the paediatric surgeons as a sebaceous cyst, and highlights the importance of imaging prior to surgery of potentially innocuous scalp lesions. Imaging features on CT and MRI are presented, which show bony involvement not previously reported in the literature.

Imaging in Haematopoietic Stem Cell Transplantation

Haematopoietic stem cell transplantation (SCT) is used to treat a wide range of malignant and non-malignant haematological conditions, solid malignancies, and metabolic and autoimmune diseases. Although imaging has a limited role before SCT, it is important after transplantation when it may support the clinical diagnosis of a variety of complications. It may also be used to monitor the effect of therapy and to detect recurrence of the underlying disease if the transplant is unsuccessful. We present a pictorial review of the imaging of patients who have undergone SCT, based upon 15 years experience in a large unit performing both adult and paediatric transplants.

Radiological approach to a child with hip pain

Hip pain in a child can be a diagnostic challenge partly because of barriers to communication in the paediatric age group. Pain or limp may result from infective, inflammatory, traumatic, neoplastic, or developmental causes. A meticulous history and detailed clinical examination guide the radiological investigation in the appropriate direction. The age of the child further helps to narrow the differential as certain diseases are more common in certain age groups. In most patients plain radiograph and/or ultrasound is adequate. Ultrasound has the added advantage of being real time and can be used to guide aspiration. Magnetic resonance imaging (MRI) and bone scintigraphy can be used for problem solving, looking for multifocal disease, and staging. Computed tomography (CT) has a limited role to play because of the risks associated with ionizing radiation. In this review we discuss the approach to imaging a child who presents with pain in the hip or with a limp. The various common and rare, but important, diseases are illustrated with examples from our clinical practice.

Patient safety education: a description and evaluation of an international, interdisciplinary e-learning programme

Patient safety is a priority within healthcare across the globe. Delivering safer healthcare demands a system wide approach and educators have a responsibility to play a full role. This article describes how e-learning can be a means of engaging and educating an international group of critical care professionals studying at Masters level. Using online tools such as blogs, wikis and discussion boards students are introduced to quality and safety subjects and tools to help them improve care at a local level. Working together as a collaborative of different professionals has engaged the student group helping them understand their role in reducing harm and has resulted in improvements to care.

Pain in the neck

A girl aged 4 years presented with a 1-month history of headache, malaise and episodes of unsteady gait. She appeared well with normal observations. She had limited neck extension and lateral rotation with normal neurological examination. A CT head showed no space-occupying lesion and the patient was discharged. She re-presented a week later with neck pain, stiffness and intermittent fever. There were no signs of upper airway obstruction and she continued to eat …

Misleading presentation of empyema

Plain chest radiograph is the primary imaging modality of choice in any child presenting with respiratory symptoms. Where there are findings suggestive of a superior mediastinal mass, a number of differential diagnoses should be considered. Findings, however, may be difficult to characterise from plain film imaging alone, and cross-sectional imaging plays a very important role in further investigation. We present a case that highlights these points as well as …