Radiologists often encounter mass lesions in the lungs and mediastinum on imaging studies. It is essential for radiologists to recognize findings that suggest non-neoplastic disease when evaluating an intrathoracic mass to most efficiently direct subsequent patient workup and management. The purpose of this exhibit is to:
Illustrate the appearances of some unusual non-neoplastic lesions of the lungs and mediastinum that can mimic malignancy.
Discuss features that suggest a benign etiology or a specific diagnosis.
Introduction: Importance of differentiating benign from malignant lesions.
Mediastinal lesions to be discussed include: bronchopulmonary foregut malformations, extramedullary hematopoiesis, diaphragmatic defects, non-neoplastic adenopathy, meningocele, and fibrosing mediastinitis.
Lung parenchymal lesions presented include: bronchogenic cysts, sequestration, rounded atelectasis and mass lesions of infectious or inflammatory etiology.
Summary - imaging features that suggest benign disease.
References
Herradura, A,
Maldjian, P,
Non-neoplastic Intrathoracic Masses: When Cancer is not the Answer. Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL.
http://archive.rsna.org/2014/14005958.html
