Non-Infectious Granulomatous Lung Disease: Imaging Findings with Pathologic Correlation
- Affiliations
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- 1Department of Diagnostic Radiology, Hospital de Sant Pau, Universitat Autónoma de Barcelona, Barcelona, Spain
- 2Department of Defense, Pulmonary & Mediastinal Pathology, The Joint Pathology Center, Silver Spring, MD, USA
- 3Department of Diagnostic Radiology, Chest Imaging, & Pulmonary Critical Care Medicine, University of Maryland School of Medicine, Baltimore, MD, USA
- 4Department of Radiology, Hospital Universitário Clementino Fraga Filho-Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brasil
- 5Department of Radiology, Kansai Rosai Hospital, Hyogo, Japan
- 6Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine (SKKU-SOM), Seoul, Korea
Abstract
- Non-infectious granulomatous lung disease represents a diverse group of disorders characterized by pulmonary opacities associated with granulomatous inflammation, a relatively nonspecific finding commonly encountered by pathologists. Some lesions may present a diagnostic challenge because of nonspecific imaging features; however, recognition of the various imaging manifestations of these disorders in conjunction with patients’ clinical history, such as age, symptom onset and duration, immune status, and presence of asthma or cutaneous lesions, is imperative for narrowing the differential diagnosis and determining appropriate management of this rare group of disorders. In this pictorial review, we describe the pathologic findings of various non-infectious granulomatous lung diseases as well as the radiologic features and high-resolution computed tomography imaging features.