A. An anteroposterior chest radiograph of a 6-month-old infant shows a prominent mediastinal silhouette caused by a normal thymus. Lordotic patient positioning accentuates superimposition of the thymus on the heart contour. B. The lateral view confirms normal heart size.
A. An anteroposterior radiograph of a 2-month-old infant shows the "sail sign" (arrow) appearance of a normal thymus. B. The "thymic wave sign" (arrow) is visible on this radiograph of a 28-day-old infant.
A. Sonography of a palpable mass adjacent to the right hemimandible shows an oval hypoechoic solid lesion (arrows). B, C. The lesion (arrows) also has a homogeneous appearance on T1-weighted (A) and fat-suppressed T2-weighted MR images. The orthotopic thymus is normal.
This 9-year-old boy had a palpable mass adjacent to the left lobe of the thyroid. A. An axial fat-suppressed T2-weighted image shows a small homogeneous soft-tissue mass (arrow) at the base of the neck anterior to the trachea. B. A sagittal short tau inversion recovery (STIR) image shows connection to the orthotopic thymus via a thin stalk (arrow).
A. An oval soft-tissue density mass (arrow) causes extrinsic impression on the posterior-right lateral aspect of the esophagus. B, C. The cystic paraspinal mass is homogeneously hyperintense on T2-weighted MR images. A thin capsule (arrow) is visible on the axial image.
A. There is a large middle mediastinal cyst on this contrast-enhanced CT image of a teenage girl with recurrent pneumonias. B. A reformatted coronal image demonstrates the proximity to the carina and main bronchi.
7. Enteric duplication cyst
Enteric duplication cyst.
A, B. Axial and coronal contrast-enhanced CT images of a 5-month-old child show a cystic mass (arrows) adjacent to ...
Log In to View More
If you don't have a subscription, please view our individual subscription options below to find out how you can gain access to this content.
Want remote access to your institution's subscription?
Sign in to your MyAccess profile while you are actively authenticated on this site via your institution (you will be able to verify this by looking at the top right corner of the screen - if you see your institution's name, you are authenticated). Once logged in to your MyAccess profile, you will be able to access your institution's subscription for 90 days from any location. You must be logged in while authenticated at least once every 90 days to maintain this remote access.
If your institution subscribes to this resource, and you don't have a MyAccess profile, please contact your library's reference desk for information on how to gain access to this resource from off-campus.
AccessPediatrics Full Site: One-Year Subscription
Connect to the full suite of AccessPediatrics content and resources including 20+ textbooks such as Rudolph’s Pediatrics and The Pediatric Practice series, high-quality procedural videos, images, and animations, interactive board review, an integrated pediatric drug database, and more.
Pay Per View: Timed Access to all of AccessPediatrics
24 Hour Subscription $34.95
48 Hour Subscription $54.95
Pop-up div Successfully Displayed
This div only appears when the trigger link is hovered over.
Otherwise it is hidden from view.