Aortopulmonary Window with Interrupted Aortic Arch and Pulmonary Artery Sling: Diagnosis by Echocardiography and Magnetic Resonance Imaging: Case Report and Literature Review

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/71570/1/j.1540-8175.1999.tb00796.x.pd

Antenatal sonographic findings of fetal adrenal hemorrhage

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/38199/1/1870230710_ftp.pd

Congenital short-gut syndrome

A case of congenital short gut is reported in a 4-month-old boy presenting with failure to thrive. Upper gastrointestinal examination (UGI) with small bowel follow-through (SBFT) demonstrated dilation of the duodenum and jejunum, with rapid transit to rectum. On barium enema (BE), rapid transit of barium was noted to the dilated proximal small bowel seen on UGI/SBFT. Neither study delineated the ileocecal region, and the overall length of bowel appeared short. The diagnosis of congenital short gut was confirmed at surgery. Congenital short-gut syndrome is a rare entity. The diagnosis can be suggested by imaging, but is usually confirmed operatively.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46714/1/247_2003_Article_1087.pd

Pulmonary involvement in pediatric lymphoma

The prevalence of pulmonary lymphoma in the pediatric age group is not documented in the literature.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46710/1/247_2003_Article_1080.pd

Antiangiogenic therapy for a large splenic hemangioma

Hemangiomas involving the spleen are rare and seldom symptomatic. Treatment options for large lesions usually consist of splenectomy, embolization, or both. Antiangiogenic treatment has not been reported previously as an effective alternative for this type of lesion. We report our experience of successfully using glucocorticoids in an infant with a large hemangioma of the spleen.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47169/1/383_2005_Article_1533.pd

CT appearance of the spleen following conservative management of traumatic injury

Objective: To describe the long-term changes in the traumatized spleen following conservative management in pediatric patients. Methods: Between 1991 and 1997, 92 children were imaged with splenic trauma. The study population includes the 25 boys and 11 girls with follow-up computed tomography (CT) imaging at our institution. The follow-up CT studies were evaluated to determine the evolution of splenic injury. Results: On initial CT there were 6 grade I, 12 grade II, 9 grade III, and 9 grade IV–V splenic injuries. In follow-up 11 spleens were normal (30 %), including at least one in each grade of severity of injury. Splenic abnormalities were identified on follow-up in 25 children. These findings comprised clefts in 8 children, small cysts in 4, and devascularized segments involving less than 1 cm 3 in 6, 1–2 cm 3 in 2, and 2–4 cm 3 in 5 children. Conclusions: All grades of splenic injury can resolve completely on subsequent CT imaging. In this series 30 % of patients had a normal follow-up CT. The most common persistent abnormalities included clefts and devascularized areas less than 4 cm 3 .Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/42349/1/10140-6-3-157_90060157.pd

Safety of gadolinium‐based contrast material in sickle cell disease

Purpose: To assess the safety of intravenously administered gadolinium‐based contrast material in sickle cell disease (SCD) patients. Materials and Methods: All pediatric and adult SCD patients evaluated by magnetic resonance imaging (MRI) at our institution between January 1995 and July 2009 were identified. The medical records of SCD patients who underwent contrast‐enhanced MRI as well as an equal‐sized cohort of SCD patients who underwent unenhanced MRI were reviewed for adverse (vaso‐occlusive and hemolytic) events within 1 week following imaging. Results: Eight (five mild and three moderate) adverse events were documented within 1 week following contrast‐enhanced MRI (38 patients and 61 contrast injections), while six (five mild and one moderate) similar events occurred within 1 week following unenhanced MRI (61 patients and 61 unenhanced MRI examinations). This difference in the number of adverse events was not statistically significant (odds ratio = 1.4; 95% confidence interval [CI] 0.4, 5.2). No severe adverse event occurred in either patient cohort. Conclusion: Gadolinium‐based contrast materials do not appear to be associated with increased risk of vaso‐occlusive or hemolytic adverse events when administered to SCD patients. Larger, prospective studies using multiple gadolinium‐based contrast materials would be useful to confirm the results of our investigation. J. Magn. Reson. Imaging 2011;. © 2011 Wiley‐Liss, Inc.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87070/1/22666_ftp.pd

Intramural and subserosal echogenic foci on US in large-bowel intussusceptions: prognostic indicator for reducibility?

BACKGROUND: In large-bowel intussusceptions, several US signs are known to indicate a lower likelihood of reducibility by enema. US can demonstrate echogenic dots or lines (foci) in the bowel wall, which might indicate an ischemic bowel. OBJECTIVE: To determine the presence of echogenic intramural and subserosal foci in large-bowel intussusceptions and to evaluate the degree of correlation with reducibility. MATERIALS AND METHODS: Between 2001 and 2008, 74 consecutive US examinations were retrospectively evaluated by two pediatric radiologists for intramural and subserosal echogenic foci, or trapped gas, in the intussusception. The degree of correlation between the sonographic findings and reducibility was evaluated. RESULTS: Of 73 intussusceptions examined by US, 56 (76%) were reducible and 17 (23%) were not reducible. Out of 10 intussusceptions with intramural gas, 11 with subserosal gas, and 14 with intramural and subserosal gas, 8 (80%), 6 (56%), 9 (64%), respectively, were not reducible. The presence of intramural gas or subserosal gas or both predicted a lower chance of reduction, but with regard to the effect of these findings together, intramural gas was the only significant predictor. CONCLUSION: Having intramural gas in large-bowel intussusception significantly decreases the chance of reduction

Bilateral giant abdominoscrotal hydroceles complicated by appendicitis

Abdominoscrotal hydrocele is a rare entity, with fewer than 100 cases reported in children. Bilateral abdominoscrotal hydroceles are even less common, with 14 cases reported in children. Various complications of abdominoscrotal hydrocele have been reported in the literature. We present a 4-month-old boy with bilateral giant abdominoscrotal hydrocele s who developed appendicitis apparently because of obstruction from the right hydrocele. We discuss the various imaging modalities used to establish the diagnosis and plan the operative approach.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46717/1/247_2005_Article_1572.pd

Posterior mediastinal hemangioma

We report posterior mediastinal hemangiomas in a 4-month-old and a 6-month-old girl. The masses were identified on radiographs of the chest followed by contrast-enhanced CT. Histological evaluation of the surgical specimens established the final diagnosis. Although mediastinal hemangiomas have been described, they remain a rare entity. A diagnosis can be suggested by relatively high attenuating masses on contrast-enhanced CT. Posterior mediastinal hemangiomas sometimes mimic neuroblastomas, which is the most common posterior mediastinal in this age group.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/46716/1/247_2005_Article_1571.pd