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Radiology – Integrated Training Initiative (R-ITI) | Paediatrics | Paediatric Mediastinum: Normal Anatomy and Appearances

Speciality
Medical Doctors
Location
Online
Delivery
Online
Time / Duration
30 to 40 minutes
Subject matter expert
elearning for healthcare
Provider
eIntegrity

Paediatric Mediastinum: Normal Anatomy and Appearances
Session Overview
Description
This session discusses radiographic anatomy of the normal mediastinum and its compartments containing different structures and why this is useful when interpreting an abnormal image. The silhouette sign and how it is used to localise a mass on chest radiograph (CXR) is explained. Embryology and the variable appearance of the normal thymus on CXR in childhood are described, including how to differentiate it from pathology. Appearances of the normal thymus on cross-sectional imaging in childhood are also demonstrated.

Learning Objectives
By the end of this session you will be able to:

  • Describe the anatomical divisions of the mediastinum and their contents
  • Identify the imaging characteristics of the normal thymus on CXR, ultrasound, computed tomography (CT) and magnetic resonance imaging (MRI)
  • Identify the causes of variation in thymic size during infancy and childhood

The CXR is the most commonly requested paediatric imaging procedure. However, the mediastinum can be a difficult area to assess on CXR in childhood as the proportionally large thymus may give the impression of cardiomegaly or a mediastinal mass. Abnormal mediastinal contours can raise the suspicion of underlying congenital heart disease or of a mediastinal mass lesion. When there is suspicion of a mediastinal mass, its location within the mediastinum helps to limit the differential diagnosis.

Further imaging with ultrasound, CT and MRI will then help to characterise the lesion, define its extent and detect complications. The choice of further imaging is largely dependent upon accurate evaluation of the CXR.

Abnormal mediastinal contours may also be due to congenital anomalies of the mediastinal vessels which can be demonstrated non-invasively using MRI.


PRM123
Type
Delivery
Title
Radiology – Integrated Training Initiative (R-ITI) | Paediatrics | Paediatric Mediastinum: Normal Anatomy and Appearances
Interest Areas / Topics Covered
Child and family health, Child health/paediatrics/immunisation, Children and young peoples health, Paediatric
Location
Provider Type
Education Provider
Time / Duration
30 to 40 minutes
Location
Online
Posted By
eIntegrity Healthcare e-Learning
Reference
R-ITI (eIntegrity) Module 5 Paediatrics, R-ITI 5 Paediatrics, 5_029 Paediatric Mediastinum: Normal Anatomy and Appearances
Price:
$19.00
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