Abstract：
BACKGROUND:Methylmalonic acidemia (MMA) is an autosomal-recessive inborn error of metabolism. OBJECTIVE:To recognize the CT and MR brain sectional imaging findings in children with MMA. MATERIALS AND METHODS:Brain imaging studies (47 MR and 5 CT studies) from 52 children were reviewed and reported by a neuroradiologist. The clinical data were collected for each patient. RESULTS:The most common findings were ventricular dilation (17 studies), cortical atrophy (15), periventricular white matter abnormality (12), thinning of the corpus callosum (8), subcortical white matter abnormality (6), cerebellar atrophy (4), basal ganglionic calcification (3), and myelination delay (3). The brain images in 14 patients were normal. CONCLUSION:Radiological findings of MMA are nonspecific. A constellation of common clinical and radiological findings should raise the suspicion of MMA.
journal_name
Pediatr Radioljournal_title
Pediatric radiologyauthors
Radmanesh A,Zaman T,Ghanaati H,Molaei S,Robertson RL,Zamani AAdoi
10.1007/s00247-008-0940-8subject
Has Abstractpub_date
2008-10-01 00:00:00pages
1054-61issue
10eissn
0301-0449issn
1432-1998journal_volume
38pub_type
杂志文章,评审abstract：:Involvement in successful and sustained quality improvement can be a very rewarding experience. However, it can be very difficult work. Up to 70% of attempted organizational change is not sustained. There are many reasons why quality-improvement projects might not be successful. In this article, the author reviews ite...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s00247-017-3823-z
更新日期：2017-06-01 00:00:00
abstract：:Unilateral thalamic bleeding with associated intraventricular hemorrhage is reported in three full-term neonates. The first presented within 48 hours from birth with early onset streptococcal meningitis, persistent pulmonary hypertension, tonic seizures and a tense fontanelle. The second presented 6 days after birth w...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/BF02011312
更新日期：1992-01-01 00:00:00
abstract：:In infants and children the association of paravertebral widening and abdominal tumour has been regarded as typical of neuroblastoma. However, a paraspinal mass may develop in other malignant tumours too, but seems to be extremely rare in nephroblastoma. The fourth case so far on record is reported. Microscopically th...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF00971775
更新日期：1982-01-01 00:00:00
abstract：:There are few descriptions of the magnetic resonance (MR) appearance of hyperfunctioning adrenocortical tumours, particularly those occurring in childhood. We studied five patients, two girls and three boys, aged 6-14.3 years, presenting with clinical syndromes of adrenocortical hyperfunction. The diagnoses were Cushi...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF01396204
更新日期：1996-11-01 00:00:00
abstract：:Automatic exposure control (AEC) is particularly well-suited for pediatric CT scanning. However the importance of the localizer scan portion of exams that relies on AEC is frequently underestimated. This paper explains in detail several crucial aspects of the localizer and their effect on the subsequent cross-sectiona...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s00247-014-3140-8
更新日期：2014-10-01 00:00:00
abstract：OBJECTIVE:Unenhanced MRI has emerged as a useful tool for diagnosing pediatric acute appendicitis. The use of contrast-enhanced MRI for diagnosing pediatric appendicitis has not been documented. The purpose of this study is to examine the diagnostic performance of contrast-enhanced MRI for acute appendicitis and altern...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-014-2952-x
更新日期：2014-08-01 00:00:00
abstract：:Imaging is often a fundamental part in the evaluation of an injured or ill child. A variety of imaging modalities (radiography, angiography/fluoroscopy, sonography, CT, magnetic resonance imaging and scintigraphy) are among the options. CT is worth focused attention because of its usefulness in a variety of emergency ...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s00247-008-0863-4
更新日期：2008-11-01 00:00:00
abstract：:Deep venous thrombosis (DVT) is being increasingly recognized as a significant issue in children. Despite the low incidence of DVT, the risks of pulmonary embolism and death in children are significant. Post-thrombotic syndrome, a syndrome of chronic venous insufficiency, can have long-term adverse consequences in chi...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-013-2634-0
更新日期：2013-08-01 00:00:00
abstract：:Intrathoracic rib is a rare congenital anomaly that is usually discovered incidentally. It represents a benign lesion but can mimic intrathoracic pathology, so it is important to recognize it to prevent further unnecessary investigation or intervention. Typically, the classic appearance allows diagnosis with confidenc...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-008-0881-2
更新日期：2008-09-01 00:00:00
abstract：:Radiologically visible calcification in the wall of a uriniferous perirenal pseudocyst is rare. This unusual finding was seen in a newborn infant who was found to have a left flank mass on the first day of life. When perirenal pseudocysts occur in infants, they are usually caused by congenital obstructive lesions of t...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF00973970
更新日期：1980-01-01 00:00:00
abstract：:Osteoporosis is a generalised disorder of the skeleton with reduced bone density and abnormal bone architecture. It increases bone fragility and renders the individual susceptible to fractures. Fractures of the vertebrae are common osteoporotic fractures. Vertebral fractures may result in scoliosis or kyphosis and, be...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s00247-018-4279-5
更新日期：2019-03-01 00:00:00
abstract：:A retrospective study was performed of the radiographic patterns of the lungs in children being followed in the Children's Hospital Aids Program (CHAP). The most consistent finding was a diffuse reticulonodular pattern in the lungs. In addition, lung consolidation, either isolated or in combination with nodules, was n...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02010931
更新日期：1993-01-01 00:00:00
abstract：BACKGROUND:Size-specific dose estimate is gaining increased acceptance as the preferred index of CT dose in children. However it was developed based on non-clinical data. OBJECTIVE:To compare the accuracy of size-specific dose estimate (SSDE) based on geometric and body weight measures in pediatric chest and abdomen C...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-016-3604-0
更新日期：2016-08-01 00:00:00
abstract：:A case of pyelocalyceal diverticula in a patient with the Beckwith-Wiedemann syndrome is presented. The abnormalities were first identified on screening ultrasound and confirmed at excretory urography. The diverticula in this syndrome are likely secondary to hereditary embryopathy of the kidneys. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02386605
更新日期：1987-01-01 00:00:00
abstract：BACKGROUND:Neurosonography can assist clinicians and can provide researchers with documentation of brain lesions. Unfortunately, we know little about the reliability of sonographically derived diagnoses. OBJECTIVE:We sought to evaluate observer variability among experienced neurosonologists. MATERIALS AND METHODS:We ...
journal_title：Pediatric radiology
pub_type： 杂志文章,多中心研究
doi：10.1007/s00247-007-0605-z
更新日期：2007-12-01 00:00:00
abstract：:The development of lipid aspiration pneumonia after chronic nasopharyngeal installation of mineral oil was first described in 1925 by Laughlin. Since that time this entity has been well recognized and numerous substances have been identified or implicated as the aspirated material. The classic radiographic appearance ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02389570
更新日期：1989-01-01 00:00:00
abstract：:We present a case of blow-out fracture of the superomedial orbital wall in a 6-year-old boy. The initial plain radiograph showed an intact orbital margin and opacification of the ethmoid sinus. A fine-cut CT scan of the facial bones revealed a complex fracture of the medial orbital wall extending into the orbital roof...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-009-1280-z
更新日期：2009-08-01 00:00:00
abstract：OBJECTIVE:To examine the extent to which intracranial pressure (ICP) in children after severe brain trauma can be determined by cranial CT. MATERIALS AND METHODS:Two experienced paediatric radiologists, without any knowledge of the clinical symptoms, evaluated 124 CT scans from 65 children (average age 5.4 years) who ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s002470000255
更新日期：2000-07-01 00:00:00
abstract：:A marked thoracic deformity associated with intrathoracic tracheal narrowing was seen in a 17-year-old with achondroplasia and dyspnea. The role of chest deformity and its evaluation by CT and MRI in achondroplastic patients with respiratory symptoms are considered. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02012508
更新日期：1992-01-01 00:00:00
abstract：:We present a 10-week-old girl with myositis ossificans circumscripta (MO) of the neck secondary to nonaccidental trauma. This condition is rarely seen in infants; furthermore, the majority of MO lesions develop in the extremities rather than the head and neck region. We will detail the US-guided biopsy technique used ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-011-2270-5
更新日期：2012-07-01 00:00:00
abstract：BACKGROUND:Aortic dilatation and dissection are rare but important complications of Turner syndrome that increase the risk of sudden death in young patients. OBJECTIVE:To assess the value of aortic MRI in patients with Turner syndrome; in particular to demonstrate early aortic dilatation. MATERIALS AND METHODS:A tota...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-004-1359-5
更新日期：2005-03-01 00:00:00
abstract：:Clavicle fractures are the most common bony injury that occurs during the delivery process. We present a case of medial clavicular physeal fracture mimicking sternoclavicular dislocation diagnosed by ultrasound (US) in a neonate. The infant presented to our clinic at 12 days old with improving left upper extremity pse...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-019-04583-2
更新日期：2020-04-01 00:00:00
abstract：:Magnetic resonance enterography (MRE) now plays a central role in diagnosing pediatric inflammatory bowel disease (IBD), and its role in other intestinal pathologies such as scleroderma is gradually expanding. MRE helps distinguish between Crohn disease and ulcerative colitis, defining extent and severity. Standard MR...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s00247-016-3596-9
更新日期：2016-05-01 00:00:00
abstract：:Two different forms of dyssegmental dysplasia, mild and severe, can be distinguished on clinical, radiographic and chondro-osseous morphologic grounds. The milder Rolland-Desbuquois type is frequently characterised by survival beyond the newborn period. The lethal Silverman-Handmaker type has distinctive and more seve...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s002470050279
更新日期：1997-12-01 00:00:00
abstract：:Fetus in fetu is a rare pathological condition, presenting as a congenital tumor. It consists of a malformed parasitic twin that is found within the body of its sibling. Less than 70 cases have been reported and in most of them a definite diagnosis was only made during surgery. We present a case with two fetuses in th...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02012747
更新日期：1994-01-01 00:00:00
abstract：BACKGROUND:Alveolar rhabdomyosarcoma commonly arises in the extremities and is characterized by aggressive biology and high frequency of metastases. Whole-body imaging is increasingly employed in pediatric oncology but not recommended as standard in the staging of soft-tissue sarcomas. OBJECTIVE:After observing patien...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-017-4066-8
更新日期：2018-05-01 00:00:00
abstract：BACKGROUND:We have clinically encountered children with fibrodysplasia ossificans progressiva who had abnormal calcaneal ossification. OBJECTIVE:To evaluate whether calcaneal ossification variants are significant radiographic findings in children with fibrodysplasia ossificans progressiva. MATERIALS AND METHODS:Later...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-016-3662-3
更新日期：2016-10-01 00:00:00
abstract：:We performed 25 percutaneous fine needle biopsies (PFNB) on pediatric patients during a 3-year period. Of 17 patients with proven malignancies, PFNB was true positive in 16 and false negative in one. In nine patients with benign or inflammatory disorders, there were three true positives and six false negatives. There ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02388363
更新日期：1985-01-01 00:00:00
abstract：:Intracerebral paragangliomas are rare because of the lack of paraganglial cells in the cerebral tissue. We report a rare case of melanotic paraganglioma arising from the temporal horn of the lateral ventricle in a patient with prior Langerhans cell histiocytosis (LCH) treated with chemotherapy and radiation. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-007-0734-4
更新日期：2008-05-01 00:00:00
abstract：:The arterial resting flow, the arterial peak flow after 3 minutes of circulatory arrest to the leg, and the venous emptying rate were studied by strain gauge plethysmography in the calves of 85 children between 3 and 16 years of age. Most of the children had heart disease; therefore the values obtained can be regarded...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF00973363
更新日期：1975-01-24 00:00:00
