Tuberculosis, Post-Primary Helen T. Winer-Muram, MD Key Facts Imaging Findings Rim-enhancing enlarged mediastinal lymph nodes Consolidation (100%) Lobular size and peribronchial Cavitation (50%) Wall thickness variable: Thick > thin, shape…
Aspergillosis, Angioinvasive Helen T. Winer-Muram, MD Key Facts Terminology Invasive aspergillosis: Tissue invasion either angioinvasive or airway invasive, typically occurs in patients with neutropenia or impaired neutrophil function Imaging Findings…
Pneumocystis, Jiroveci Pneumonia Jud W. Gurney, MD, FACR Key Facts Terminology Opportunistic fungal infection often affecting individuals with T-cell immunodeficiency Imaging Findings Ground-glass is dominant finding; opacities symmetric and diffuse…
Viral Pneumonia Jud W. Gurney, MD, FACR Key Facts Terminology Pulmonary infection with viral pathogen typically affects respiratory epithelium from trachea to terminal bronchioles Pneumonic (alveolar involvement) less common but…
Intralobar Sequestration Jud W. Gurney, MD, FACR Key Facts Terminology Pulmonary sequestration represents nonfunctioning lung tissue separated from normal lung Receives its blood supply from systemic artery Intralobar sequestration (90%)…
Tuberculosis, Miliary Martha Huller Maier, MD Key Fact Terminology Fulminant infection with Mycobacterium tuberculosis disseminated via bloodstream Imaging Findings Nodules small and uniform in size, usually too numerous to count…
Lymphoproliferative Disorder Jud W. Gurney, MD, FACR Key Facts Terminology Lymphoproliferative disorders strongly related to either autoimmune diseases or immunosuppressed conditions Follicular bronchiolitis Small nodules and mediastinal lymphadenopathy common Lymphocytic…
Cryptogenic Organizing Pneumonia Jud W. Gurney, MD, FACR Key Facts Terminology Clinicopathological entity characterized by polypoid plugs of loose granulation tissue within air spaces Imaging Findings Multiple alveolar opacities (90%)…
Diffuse Pulmonary Lymphangiomatosis Melissa L. Rosado-de-Christenson, MD, FACR Key Facts Terminology Congenital disorder characterized by proliferation and dilatation of lymphatic channels Imaging Findings Radiography: Reticular opacities and pleural effusions CT…
Silicosis, Complex Kimberly E. Sanchez, MD Aqeel A. Chowdhry, MD Tan-Lucien H. Mohammed, MD, FCCP Key Facts Terminology Complicated pneumoconiosis: Aggregation of nodules into large masses > 1 cm in…
