Abstract：
BACKGROUND:The aberrant cervical thymus is an uncommon entity to be considered in the differential diagnosis of neck masses in children, so a preoperative diagnosis has rarely been made. OBJECTIVE:The purpose of this study was to assess the ultrasound features of aberrant cervical thymus and determine if recognition of the previously described unique intrathymic echo pattern allows us to make a specific diagnosis. MATERIALS AND METHODS:We present four patients with an aberrant cervical thymus and one patient with a cervical thymic cyst. All five patients had ultrasound, which was evaluated with special attention to the detailed echo pattern of the mass. In two patients, the mass was surgically removed. Four patients had MRI, which was evaluated. Medical records were reviewed. RESULTS:In all cases, the mass was painless and nontender. All occurred in the expected path of the thymopharyngeal duct. In four patients, ultrasound demonstrated multiple echogenic linear structures and foci previously described as characteristic echo pattern of normal thymic tissue. In one patient, ultrasound showed a large cystic mass and echogenic solid component superiorly with a characteristic echo pattern of normal thymus. CONCLUSIONS:The ultrasound appearance of thymic tissue is unique, allowing a specific diagnosis of aberrant cervical thymus. Biopsy or other imaging is probably not indicated when it presents with typical clinical features.
journal_name
Pediatr Radioljournal_title
Pediatric radiologyauthors
Han BK,Yoon HK,Suh YLdoi
10.1007/s002470100468keywords:
subject
Has Abstractpub_date
2001-07-01 00:00:00pages
480-7issue
7eissn
0301-0449issn
1432-1998journal_volume
31pub_type
杂志文章abstract：:In 200 unselected upper abdominal sonographies in children the hepatic venous anatomy was examined with special reference to caudal hepatic veins. In 42% of patients caudal hepatic veins could be demonstrated sonographically, while large caudal hepatic veins could be shown in 12.5% of patients. The large caudal hepati...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02343422
更新日期：1984-01-01 00:00:00
abstract：:We present the CT and MRI findings of an 8-day-old infant with an infected cephalhaematoma complicated by skull osteomyelitis, venous sinus thrombosis and left cerebellar haemorrhage. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-001-0647-6
更新日期：2002-05-01 00:00:00
abstract：BACKGROUND:Demand for pediatric cardiac computed tomography (CT) angiography is increasing due to recent advances that reduce the need for sedation and radiation exposure while enhancing diagnostic accuracy. This has resulted in the increasing use of cardiac CT angiography emergently during weekends and after hours. Th...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-020-04659-4
更新日期：2020-07-01 00:00:00
abstract：:Abnormalities of the fetal urinary tract, most commonly hydronephrosis of differing causes, can be detected by ultrasound (US). Prenatal measurements of the kidney can help to predict the postnatal outcome of hydronephrosis. About 20% of abnormalities evident in utero are not present after birth. After delivery, vario...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s002470050434
更新日期：1998-08-01 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：:The CT appearance of oropharyngeal tularemia in a 3 1/2 year-old boy is described. Tularemia should be considered in the differential diagnosis of massive adenotonsillar enlargement and extensive necrotic cervical adenopathy. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02075217
更新日期：1990-01-01 00:00:00
abstract：:Peutz-Jeghers syndrome (PJS) is a rare, though well-described, hereditary polyposis syndrome associated with mucocutaneous pigmentation that typically presents in the second decade of life with complications related to intestinal polyps. We present two cases of teenaged girls presenting with small-bowel intussusceptio...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-002-0695-6
更新日期：2002-09-01 00:00:00
abstract：:Castleman's disease is a benign lymphoproliferative disorder characterised by enlarged hyperplastic lymph nodes. It is rare in children and usually presents as localised disease. Subpectoral involvement has not been previously described in multicentric Castleman's disease in children. We present the CT, US and Doppler...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-003-0947-0
更新日期：2003-08-01 00:00:00
abstract：:A case of neurofibromatosis in a 7-year-old boy from Greenland is presented. The patient suddenly developed a severe thoracic scoliosis because of a total luxation of the upper thoracic vertebrae caused by erosion from soft tissue tumours in the region. Tomography revealed the bone changes, and CT whole-body scanning ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF00974044
更新日期：1979-10-01 00:00:00
abstract：BACKGROUND:Myocardial T1 relaxometry can be performed by contouring on individual T1-weighted source images (source method) or on a single T1 map (mapping method). OBJECTIVE:This study compares (a) agreement between native T1 and extracellular volume results of the two methods and (b) interobserver reproducibility of ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-019-04428-y
更新日期：2019-08-01 00:00:00
abstract：:A case of hypertrophic osteoarthropathy in a 5-year-old Saudi boy is presented. The child developed painful joints, was found to have clubbing of fingers and radiologically hypertrophic osteoarthropathy was demonstrated. The underlying cause of the condition was ingestion of animal fat in infancy, with a history of gh...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02019076
更新日期：1995-01-01 00:00:00
abstract：:The imaging procedures utilized at presentation in the diagnostic work-up of 19 children with Burkitt lymphoma were reviewed. The distribution of disease was compared to other tumors of childhood so that the most valuable modalities could be identified. Burkitt lymphoma is a rapidly growing tumor in the child, making ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02388718
更新日期：1985-01-01 00:00:00
abstract：:Testicular teratoma is a rare tumor in children. We recently encountered two boys, aged 18 months and 2 years respectively, with this tumor. Sonography revealed an intratesticular mass in both. The first revealed a predominantly cystic lesion with echogenic components along its wall. The second showed a complex mass o...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02011304
更新日期：1992-01-01 00:00:00
abstract：:Periventricular leukomalacia (PVL) is a common finding during neurosonography of preterm infants. Secondary thinning of the corpus callosum is seen following PVL, typically from loss of hemispheric white matter tracts. We report a case of direct involvement of the corpus callosum with PVL, its pathogenesis, and its po...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s002470050187
更新日期：1997-07-01 00:00:00
abstract：:Lissencephaly, a developmental malformation characterized by absence of sulci, may be suggested in dysmorphic or epileptic infants. Real time ultrasonographic findings correlated with typical electroencephalographic abnormalities establish the diagnosis. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02396608
更新日期：1987-01-01 00:00:00
abstract：:We present an unusual case of severe hydranencephaly in a term infant who presented with the following additional unique features, which were discovered on CT, MRI and MR angiography examinations: (1) occlusion of the bilateral posterior cerebral arteries, (2) absence of the occipital lobes, (3) an ovoid calcified mas...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-010-1894-1
更新日期：2011-02-01 00:00:00
abstract：:Ultrasound scans of 18 children with primary hepatic tumours were reviewed to assess the accuracy of ultrasound in determining hepatic origin, extent, resectability, and histology. Using basic landmarks, ultrasound correctly predicted extent and resectability in 72% of patients. Accuracy would be increased by more det...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02388402
更新日期：1988-01-01 00:00:00
abstract：:Intramuscular myxoma (IM) is a true mesenchymal benign tumour which is rare in both adults and children. In children, it most commonly affects the heart, mandible or maxilla. We report a 5-year-old child with IM presenting as a posterolateral neck mass and review the literature. IM, although very rare, should be inclu...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-001-0603-5
更新日期：2002-02-01 00:00:00
abstract：:With the demand for fetal imaging and fetal care programs on the rise, the authors of this manuscript review the components of building a successful fetal imaging center. Creating an environment that engages a multidisciplinary team, utilizing a central coordinator to review clinical and psychosocial aspects of each p...
journal_title：Pediatric radiology
pub_type： 杂志文章,评审
doi：10.1007/s00247-020-04702-4
更新日期：2020-12-01 00:00:00
abstract：:Three very low birth weight infants, treated with frusemide for broncho-pulmonary dysplasia are described. They all developed medullary nephrocalcinosis identifiable by real time ultrasound. The sonographic findings of diffuse medullary hyper-echogenicity appears to be specific for nephrocalcinosis. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02389002
更新日期：1988-01-01 00:00:00
abstract：:We report an extremely unusual case of a 4-month-old boy who presented with a sudoriferous gland cyst of the orbit. Congenital sudoriferous cyst is extremely rare in both the adult and pediatric populations. The CT and MRI findings are presented and the pertinent literature reviewed. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-005-1523-6
更新日期：2005-11-01 00:00:00
abstract：:Complete fracture-separation of humeral epiphyses, proximal or distal, represents unusual skeletal injuries in the battered infant. Radiographic identification of the type and extent of epiphyseal injury may be difficult due to lack of ossified epiphyseal centers. While arthrography can be a useful diagnostic and ther...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF00975189
更新日期：1981-02-01 00:00:00
abstract：:A newborn suffered immediate neonatal respiratory distress because of an obstructive, soft-tissue nasal mass. Clinical examination revealed a cleft palate with a protruding polypoid mass. CT and MRI showed a heterogeneous nasopharyngeal mass and associated intracranial abnormalities - duplication of the hypophysis and...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s002470050354
更新日期：1998-05-01 00:00:00
abstract：BACKGROUND:Percutaneous arterial closure devices have increasingly entered clinical practice to assist in achieving femoral arterial access site hemostasis. Prior studies have demonstrated the safety and efficacy of several arterial closure devices in adults. OBJECTIVE:To evaluate the efficacy of using an arterial clo...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-012-2606-9
更新日期：2013-06-01 00:00:00
abstract：:Neuroblastomas are the most common extracranial solid malignancy in children. In contrast, salivary gland tumors are uncommon in children, accounting for only 1% of all pediatric neoplasms. Parotid metastases are rare; only two cases of parotid metastases from neuroblastomas have been reported with an emphasis on the ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-010-1750-3
更新日期：2010-12-01 00:00:00
abstract：BACKGROUND:Knowledge of the synovial and tenosynovial appearance of the clinically non-arthritic symptomatic juvenile wrist using contrast-enhanced magnetic resonance imaging (MRI) is sparse. OBJECTIVES:To analyze contrast-enhanced MRI findings of the clinically non-inflamed symptomatic pediatric wrist, focusing on th...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s00247-020-04739-5
更新日期：2020-09-01 00:00:00
abstract：:Sonographic studies on 52 children with suspected peripheral vascular disease examined between January 1988 and December 1989 were retrospectively reviewed. A technique for examining the jugular, subclavian veins, and superior vena cava (SVC) was developed and is described. The technique for examining the extremities ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF02011718
更新日期：1991-01-01 00:00:00
abstract：:We prospectively evaluated a group of patients with sickle cell disease and a clinical history of prior stroke, comparing transcranial Doppler sonography (TCD) to both magnetic resonance imaging (MRI) and magnetic resonance angiography (MRA) to determine its efficacy for the detection of flow abnormalities associated ...
journal_title：Pediatric radiology
pub_type： 临床试验,杂志文章
doi：10.1007/BF02012192
更新日期：1994-01-01 00:00:00
abstract：:Abnormal enlargement or malposition of any vascular structure or mass adjacent to the airway can cause extrinsic airway compression. In children with previous surgery for congenital heart disease, mass effect from prosthetic devices or alteration in the anatomic position of normal structures can lead to extrinsic airw...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/s002470050121
更新日期：1997-03-01 00:00:00
abstract：:The clinical, pathologic and roentgenographic features of a case of congenital oxalosis are discussed and contrasted to the more common forms of primary oxalosis. The ease of demonstration of the cortical deposition of calcium oxalate crystals on the CT scanner is reported. ...
journal_title：Pediatric radiology
pub_type： 杂志文章
doi：10.1007/BF01001753
更新日期：1980-11-01 00:00:00
