Wegener Granulomatosis, Airways Melissa L. Rosado-de-Christenson, MD, FACR Key Facts Terminology Systemic necrotizing granulomatous vasculitis of small to medium-sized vessels May produce tracheobronchial stenosis Imaging Findings Tracheal wall thickening/stenosis Frequent…
Gravitational Gradients Jud W. Gurney, MD, FACR Terminology Definitions Distribution of disease not a random process but end result of interaction between pathologic process with its environment Gravity alters pulmonary…
Cross-Sectional Physiology Jud W. Gurney, MD, FACR Terminology Definitions Geometry of airways and arteries is important determinant of flow distribution Airway branching Asymmetric dichotomous pattern (each parent divides into 2…
Lymphatics Melissa L. Rosado-de-Christenson, MD, FACR Gerald F. Abbott, MD Terminology Abbreviations Secondary pulmonary lobule (SPL) Overview of Pulmonary Lymphatics Morphology Tubular structures forming vascular channels Complex network of vessels…
Pulmonary Veins Melissa L. Rosado-de-Christenson, MD, FACR Gerald F. Abbott, MD Terminology Abbreviations Secondary pulmonary lobule (SPL) Overview of Pulmonary Veins Morphology Branching tapering tubular structures Peripheral tributaries anastomose to…
Pulmonary Arteries Melissa L. Rosado-de-Christenson, MD, FACR Gerald F. Abbott, MD Terminology Abbreviations Secondary pulmonary lobule (SPL) Overview of Pulmonary Arteries Morphology Branching tapering tubular structures Terminate in capillary network…
Ampullary Carcinoma Brooke R. Jeffrey, MD Amir A. Borhani, MD Key Facts Terminology Malignant epithelial neoplasm (adenocarcinoma) arising from ampulla of Vater Imaging Ampullary mass with variable attenuation (most often…
Mucinous Cystic Pancreatic Tumor Brooke R. Jeffrey, MD Michael P. Federle, MD, FACR Key Facts Terminology Thick-walled, uni-/multilocular, low-grade malignant tumor composed of large, mucin-containing cysts Imaging Enhancing multiseptated mass…
Pancreatic Pseudocyst Brooke R. Jeffrey, MD Michael P. Federle, MD, FACR Key Facts Imaging Collection of fluid, tissue, debris, pancreatic enzymes, and blood surrounded by fibrous capsule Develops after 4…
