Med Imaging- Lungs Pt. 1

Alveolar spaces are filled with some material such as blood, pus, fluid, or cells

Alveolar (localized)

tissue outside of the alveoli are affected

Interstitial (diffuse)

Alveolar infiltrates are either

fluffy or complete consolidations

Air bronchogram

Air bronchogram sign

air filled bronchi become visible against a background of dense lung tissue

Kerley A lines

periphery (interstitial infiltrate)

Kerly B lines

base (interstitial infiltrate)

vertebral bodies are lighter (white) than normal on lateral x-ray view

spine sign

Aspiration pneumonia shows as an

alveolar infiltrate

Enlargement of hilar or mediastinal lymph nodes is present in

primary active TB

calcified nodes are associated with

TB

less than 3cm, calcified, round well defined borders, solid-no cavity

Benign solitary pulmonary nodule

great than 3 cm, not calcified, irregular shape, cavitated, growth in past 2 years

malignant solitary pulmonary nodule

most common type of lung cancer and usually occur peripherally

Adenocarcinomas

what lung cancer usually occurs centrally and tend to cavitate

squamous cell carcinomas

what lung cancer often presents as an indistinct hilar or perihilar mass

small cell carcinomas

what lung cancer occurs peripherally or centrally and grow rapidly with early metastases- poor prognosis

non-small cell carcinomas

Arise in the superior sulcus of the lung as an apical soft tissue mass

lung cancer- pancoast tumor

1

superior vena cava

2

right atrium

3

inferior vena cava

4

aortic arch or knob

5

left pulmonary trunk

6

left pulmonary artery

7

left atrium

8

left ventricle

9

left cardiophrenic angle

A

trachea

B

Clavicle

C

Right atrium

D

Diaphragm

E

Cardiophrenic angle

F

left upper lobe

G

gastric bubble

H

Left hilum

Reticular interstitial infiltrate (fine)

Reticular interstitial infiltrate (coarse)

Nodular Interstital infiltrate

Reticulonodular interstitial infiltrate

community acquired pneumonia

Silhouette sign

spine sign

CAP- interstitial

CAP- round

Aspiration pneumonia

lung abscess

ARDS

ARDS

Solitary pulmonary nodule

Lung cancer- adenocarcinoma

Lung cancer- squamous cell carcinoma

Lung cancer- non small cell carcinoma

Pancoast tumor

Lung cancer- metastatic disease

Silhouette sign right cardiac border- RML infiltrate

Bilateral interstitial infiltrates

squamous cell carcinoma

Bilateral pleural effusion

air bronchogram- alveolar consolidation LUL

Multiple nodules- metastatic

Nodule

Silhouette sign right cardiac border, RML