Radiologic Lung Anatomy Flashcards Preview

Pulmonary > Radiologic Lung Anatomy > Flashcards

Flashcards in Radiologic Lung Anatomy Deck (19):
1

identify the trachea

2

identify the aorta

3

identify the pulmonary artery

4

identify the hila

5

What causes the trachea to be slightly deviated to the right?

the aorta pushes it in that direction

deviation in the opposite diraction is usually a sign of an abnormality such as a right aortic arch or mediastinal mass

6

carina

structure that marks the termination of the trachea where it divides into the right and left mainstem bronchi

the right mainstem bronchus is shorter and more vertically oriented than the longer, more horizontal left mainstem bronchus

7

structures of the pulmonary hila

bronchi, pulmonary arteries, pulmonary veins, and lymph nodes

8

Why is the left hilum normally slightly higher than the right hilum?

laterally, the left pumonary artery lies on top of the left mainstem bronchus

on the right, the pulmonary artery is anterior to the bronchus

9

radiologic findings of pulmonary hypertension

central pulmonary arties may dilate, which manifests as enlarged hila on the chest radiograph

10

radiologic findings of sarcoid

enlarged lymph nodes int he mediastinum and primary hila

right paratracheal region and hila are often enlarged on radiographs

11

silhouette sign

when two structures of the same density are next to each other, the boreders of that structure iwll not be visible

for instance, during infections the right middle lobe of the right lung can be infected and obscure the right heart border

12

anterior and posterior junction lines

where the lungs touch, representing four layers of pleura

13

hallmark of pneumothorax in a radiograph

tha ability to discretely visualize the visceral pleural line

in an upright patient, air collects at the apex of the hemithorax

in a supine patient, air usually collects int he anterior, inferior hemithorax

14

azygous fissure

a normal anatomic variant composed of 4 layers of pleura

caused by an arrest in migration of the azygous vein to the right tracheobronchial angle during development

15

secondary pulmonary lobule

smallest unit of the lung that has a connective tissue covering

16

right major (oblique) fissure

divides the upper and middle lobes from the lower lobe

17

minor (horizontal) fissure

divides the right upper and middle lobes

18

left major fissure

divides the upper and lower lobes

19

empyema

loculated infection in the pleural space

fibrin deposition on the visceral and parietal pleura causes these surfaces to thicken

"split pleura" sign