Pulmonary Radiology

Question 1

What is the pattern seen in bronchopneumonia with imaging?

Answer 1

Tree in bud

Question 2

Lobar pneumonias are usually due to?

Answer 2

1) Streptococcus pneumoniae
2) Staphylococcus aureus
3) Gram negatives

Question 3

Between bronchopneumonia and lobar pneumonia, which are more likely to develop abscess formations?

What are they caused by?

Answer 3

1) Lobar pneumonia
2) Klebsiella and Staph aureus

Question 4

What is the diagnosis if imaging shows there is an abnormal, persistent widening of airways, often with extension into the peripheral lung fields?

Answer 4

Bronchiectasis

Question 5

What is the diagnosis if imaging shows bronchiectasis with situs inversus and dextrocardia?

Answer 5

Primary Ciliary Dyskinesia (Kartagener syndrome)

Question 6

What causes the bat-wing appearance on imaging?

Answer 6

Anything favoring proximal vascular or airway involvement such as pulmonary edema and pneumonia

Question 7

What causes the reverse bat-wing appearance on imaging?

Answer 7

Anything favoring peripheral involvement such as fibrosis (IPF or Sarcoidosis)

Question 8

What causes a white-out appearance on imaging?

Answer 8

ARDS

Question 9

If a coin lesion is laminated and diffuse on imaging what is the most likely diagnosis?

Answer 9

An old granuloma

Question 10

If a coin lesion has a popcorn resemblance on imaging what is the most likely diagnosis?

Answer 10

Hamartoma

Question 11

What malignancy can look like bilateral pneumonia on imaging?

Answer 11

1) Mucinous adenocarcinoma
2) Adenocarcinoma in situ

Question 12

What malignancy has a “bubble lucency” like appearance on imaging?

Answer 12

Invasive Adenocarcinoma

Question 13

What malignancy has a “ground glass” appearance on imaging?

Answer 13

Adenocarcinoma in situ

Question 14

What malignancy causes masses with cavitation seen on imaging?

Answer 14

Squamous carcinoma (has necrotic center)

Question 15

What condition is described as wedge-shaped on imaging?

Answer 15

Atelectasis

Question 16

What malignancies can result in an atelectasis?

Answer 16

1) Endobronchial squamous carcinoma
2) Endobronchial carcinoid tumor

Question 17

What characterizes a tension pneumothorax on imaging? When is this best seen?

Answer 17

1) Mediastinal shift
2) Expiratory CXR

Question 18

Diagnosis?

Answer 18

Bronchopneumonia

Question 19

Diagnosis?

Answer 19

Lobar Pneumonia

Question 20

Diagnosis?

Answer 20

Abscess formation in lobar pneumonia

Question 21

Diagnosis?

Answer 21

Bronchiectasis

Question 22

Diagnosis?

Answer 22

Bronchiectasis

Question 23

Diagnosis?

Answer 23

Primary ciliary dyskinesia with dextrocardia (Kartagener syndrome)

*Type of bronchiectasis

Question 24

Diagnosis?

Answer 24

Pulmonary edema (Bat wing pattern)

Question 25

Diagnosis?

Answer 25

Idiopathic pulmonary fibrosis (Reverse bat wing)

Question 26

Diagnosis?

Answer 26

1) Hypersensitivity Pneumonitis (Follows Airways)
2) Sarcoidosis (Follows Lymphatics)

Question 27

Diagnosis?

Answer 27

ARDS

Question 28

Diagnosis?

Answer 28

Calcified granuloma secondary to histoplasmosis

Question 29

Diagnosis?

Answer 29

Hamartoma

Question 30

Diagnosis?

Answer 30

Mucinous adenocarcinoma

Question 31

Diagnosis?

Answer 31

Adenocarcinoma in situ

Question 32

Diagnosis?

Answer 32

Invasive Adenocarcinoma

Question 33

Diagnosis?

Answer 33

Squamous carcinoma

Question 34

Diagnosis?

Answer 34

Atelectasis

Question 35

Diagnosis?

Answer 35

Tension pneumothorax