Book contents
- Frontmatter
- Contents
- List of contributors
- Preface
- Acknowledgment
- Section 1 Head and neck
- Section 2 Thoracic imaging
- Case 11 Lipoid pneumonia
- Case 12 Pleuropulmonary blastoma
- Case 13 Neuroendocrine cell hyperplasia of infancy (NEHI)
- Case 14 Endobronchial foreign body recognition
- Case 15 Chronic esophageal foreign body
- Case 16 Opsoclonus–myoclonus due to underlying ganglioneuroblastoma
- Case 17 Lymphoma: pulmonary manifestations
- Case 18 Acute and subacute pneumonia in childhood: tuberculosis
- Case 19 Thymus: normal variations
- Case 20 Airleak in the neonate
- Case 21 Bronchopulmonary malformation: hybrid lesions
- Case 22 Lymphatic abnormality in the pediatric chest
- Section 3 Cardiac imaging
- Section 4 Vascular and interventional
- Section 5 Gastrointestinal imaging
- Section 6 Urinary imaging
- Section 7 Endocrine - reproductive imaging
- Section 8 Fetal imaging
- Section 9 Musculoskeletal imaging
- Index
- References
Case 19 - Thymus: normal variations
from Section 2 - Thoracic imaging
Published online by Cambridge University Press: 05 June 2014
- Frontmatter
- Contents
- List of contributors
- Preface
- Acknowledgment
- Section 1 Head and neck
- Section 2 Thoracic imaging
- Case 11 Lipoid pneumonia
- Case 12 Pleuropulmonary blastoma
- Case 13 Neuroendocrine cell hyperplasia of infancy (NEHI)
- Case 14 Endobronchial foreign body recognition
- Case 15 Chronic esophageal foreign body
- Case 16 Opsoclonus–myoclonus due to underlying ganglioneuroblastoma
- Case 17 Lymphoma: pulmonary manifestations
- Case 18 Acute and subacute pneumonia in childhood: tuberculosis
- Case 19 Thymus: normal variations
- Case 20 Airleak in the neonate
- Case 21 Bronchopulmonary malformation: hybrid lesions
- Case 22 Lymphatic abnormality in the pediatric chest
- Section 3 Cardiac imaging
- Section 4 Vascular and interventional
- Section 5 Gastrointestinal imaging
- Section 6 Urinary imaging
- Section 7 Endocrine - reproductive imaging
- Section 8 Fetal imaging
- Section 9 Musculoskeletal imaging
- Index
- References
Summary
Imaging description
An asymptomatic three-week-old male infant with congenital heart disease (small atrial septal defect [ASD] and ventricular septal defect [VSD]), hypotonia, and dysmorphic facial features was admitted to the neonatal ICU for further evaluation. A portable frontal chest radiograph was obtained, which demonstrated a very prominent mediastinal shadow (Fig. 19.1a). On the left there was a clear thymic wave sign (Fig. 19.1a) but there was concern as to whether the right side was also thymus or if there was a mediastinal mass. A CT scan was ordered. The pediatric radiologist protocolling the CT reviewed the chest radiograph and suggested that this was likely normal thymus and recommended a lateral chest radiograph (Fig. 19.1b) and if necessary an ultrasound (US) study (Fig. 19.1c, d) as the more appropriate examinations to address the clinical concerns. The US examination (Fig. 19.1c, d) was still requested in spite of the reassuring appearance of the lateral chest radiograph showing that all the soft tissue prominence was anterior. The US clearly identified prominent normal thymic tissue, larger on the right than the left, extending from the thoracic inlet to the diaphragm.
- Type
- Chapter
- Information
- Pearls and Pitfalls in Pediatric ImagingVariants and Other Difficult Diagnoses, pp. 66 - 71Publisher: Cambridge University PressPrint publication year: 2014