Defining the normal appearance of the temporomandibular joints by magnetic resonance imaging with contrast: a comparative study of children with and without juvenile idiopathic arthritis.

Background: Up to 80% of children with juvenile idiopathic arthritis (JIA) develop arthritis involving their temporomandibular joint (TMJ). Recent studies have questioned the sensitivity of an abnormal MRI in the diagnosis of active arthritis.

Methods: 122 children without arthritis undergoing contrast MRI of the head were prospectively consented to undergo a simultaneous contrast MRI of their TMJs.

Primary pancreatic neuroblastoma presenting with opsoclonus-myoclonus syndrome.

Although neuroblastoma is a common solid organ malignancy in children, primary pancreatic neuroblastoma is a rare entity in children, with very few cases reported in the literature. The case discusses the presentation of a 21-month-old female presenting to the neurology clinic with ataxia and erratic eye movements. Our case illustrates the computed tomography, ultrasound, and scintigraphic findings of primary pancreatic neuroblastoma presenting as opsoclonus-myoclonus syndrome.

Congenital cystic neck masses: embryology and imaging appearances, with clinicopathological correlation.

Congenital cystic masses of the neck are uncommon and can present in any age group. Diagnosis of these lesions can be sometimes challenging. Many of these have characteristic locations and imaging findings.

Imaging of the temporomandibular joint in juvenile idiopathic arthritis.

Objective: Temporomandibular joint (TMJ) arthritis in children with juvenile idiopathic arthritis (JIA) is extremely common but frequently asymptomatic. Magnetic resonance imaging (MRI) with contrast remains the gold standard for identifying TMJ arthritis in JIA. A reliable scoring system with published MRI examples of typical acute and chronic TMJ arthritis changes will be invaluable for future prospective treatment trials of TMJ arthritis in JIA.

The accuracy of abnormal lumbar sonography findings in detecting occult spinal dysraphism: a comparison with magnetic resonance imaging.

Object: The purpose of this study was to correlate lumbar ultrasound (LUS) and MRI findings in patients suspected of having occult spinal dysraphism (OSD).

Methods: Over a 5-year period, 1273 consecutive infants underwent an LUS study at a major pediatric tertiary referral center. Of these, 106 patients had abnormal LUS findings suggestive of an OSD, and 103 underwent subsequent MRI studies.

Use of lumbar ultrasonography to detect occult spinal dysraphism.

Object: Various cutaneous stigmata and congenital anomalies are accepted as sufficient reasons to perform lumbar ultrasonography as a screening tool to rule out occult spinal dysraphism (OSD). The purpose of this study was to correlate presenting cutaneous findings with lumbar ultrasonography results based on a large number of lumbar ultrasonography tests obtained by regional primary care providers.

Methods: Over the course of 5 years, 1273 infants underwent lumbar ultrasonography screening at a major pediatric tertiary referral center.

Severe contrast reaction emergencies high-fidelity simulation training for radiology residents and technologists in a children's hospital.

Rationale And Objectives: Severe reactions to radiographic contrast agents can be life threatening, and although they are rare, effective recognition and management are essential to improving outcomes. A high-fidelity radiology simulation course for radiology residents and technologists focusing on severe contrast reactions and immediate treatments was designed to test the hypothesis that knowledge would improve with this educational intervention.

Materials And Methods: A prospective pretest and posttest study design was used.

Group A streptococcal infection of an intramuscular venous malformation: a case report and review of the literature.

Intramuscular venous malformations are uncommon benign masses of vascular origin that can occur anywhere in the body. They can be small and clinically insignificant or can be large and violate tissue planes and viscera. Presentation is as variable as the extent of the lesions.

Splenogonadal fusion diagnosed by Doppler ultrasonography.

Splenogonadal fusion usually presents as a left scrotal mass but rarely is the diagnosis suspected preoperatively. Herein, we present the first report of a left splenogonadal fusion which was suspected preoperatively by doppler ultrasonography in a 2 year old boy.

Investigations into the association between cervicomedullary neuroschisis and mirror movements in patients with Klippel-Feil syndrome.

Background And Purpose: Our purpose was to investigate the association between cervicomedullary neuroschisis and mirror movements in patients with Klippel-Feil syndrome (KFS).

Methods: We conducted a retrospective analysis of 23 patients with KFS who were seen at our institution during a 10-year period. Sixteen of the 23 patients had undergone adequate axial view cross-sectional imaging of the upper cervical spine.