Radiology Flashcards
What is a pulmonary meniscus sign?
seen on x ray = surface of fluid in lungs
due to surface tension btw two different fluids
Where does fluid accumulate in pleural cavity?
costophrenic angles
What is a coin sign?
solitary, round, circumscribed shadow on x-ray
may be calcified
What are coin signs caused by?
tuberculosis
neoplasms
cysts
vascular anomalies
What are kerley A lines
diagonal lines from hila to periphery
often caused by distension of anastomosic channels btw peripheral and central lymphatics
What are Kerley B lines?
short parallel lines at the periphery of lungs; perpendicular to pleura
What are causes of Kerley a and B lines?
pulmonary edema
lymphoma and other cancers
pneumonia
How can you see cardiac tamponade on x ray?
water bottle heart - globular heart silhouette in X-ray
