Skip to Main Content
Chapter 63

++

1. Avulsive cortical irregularity

++
Figure 63-1

Avulsive cortical irregularity.

A. There is a faint oval lucency (arrow) in the medial aspect of the distal femoral metaphysis of an 8-year-old boy. A peripheral sclerotic rim is present. B, C. The cortical lesion in this 9-year-old girl is smaller and has minimal adjacent sclerosis. The lateral view confirms the typical posterior location and shallow character.

Graphic Jump Location Graphic Jump Location Graphic Jump Location
++

2. Fibrous cortical defect

++
Figure 63-2

Fibrous cortical defect.

There is a shallow oval lucency in the distal femoral cortex. The margins are well-defined and slightly sclerotic.

Graphic Jump Location
++

3. Nonossifying fibroma

++
Figure 63-3

Nonossifying fibroma.

A-C. Examples of nonossifying fibromas in 3 different children. The lesions in (A) and (B) have the typical multiloculated character, with thin sclerotic margins and cortical thinning. The lesion in (C) is oval and slightly expansile. All 3 project much deeper into the medullary cavity than would occur with a fibrous cortical defect.

Graphic Jump Location Graphic Jump Location
++

4. Nonossifying fibroma

++
Figure 63-4

Nonossifying fibroma.

A, B. Coronal and axial CT images of a 17-year-old boy show the cortical origin of the lesion and medullary extension. The overlying cortex is thinned and slightly expanded. A thin sclerotic margin is present centrally. The matrix has similar attenuation as muscle.

Graphic Jump Location
++

5. Nonossifying fibroma

++
Figure 63-5

Nonossifying fibroma.

A. The matrix (arrow) is approximately isointense to adjacent skeletal muscle. The sclerotic wall is hypointense. B. The lesion is hyperintense on a STIR sequence. C. The lesion (arrow) has a slightly heterogeneous character on this spin echo (SE) T2-weighted image, and is hypointense relative to marrow.

Graphic Jump Location Graphic Jump Location
++

6. Nonossifying fibroma

++
Figure 63-6

Nonossifying fibroma.

A. A nonossifying fibroma of the fibula of a 9-year-old girl is hypointense to muscle on this T2-weighted image. B. The matrix undergoes mild, slightly heterogeneous enhancement with IV gadolinium.

Graphic Jump Location
++

7. Nonossifying fibroma

++
Figure 63-7

Nonossifying fibroma.

A, B. This large multiloculated ...

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.

Ok

About MyAccess

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.

Subscription Options

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.

$595 USD
Buy Now

Pay Per View: Timed Access to all of AccessPediatrics

24 Hour Subscription $34.95

Buy Now

48 Hour Subscription $54.95

Buy Now

Pop-up div Successfully Displayed

This div only appears when the trigger link is hovered over. Otherwise it is hidden from view.