Pulmonary Radiology Flashcards
What is the pattern seen in bronchopneumonia with imaging?
Tree in bud
Lobar pneumonias are usually due to?
1) Streptococcus pneumoniae
2) Staphylococcus aureus
3) Gram negatives
Between bronchopneumonia and lobar pneumonia, which are more likely to develop abscess formations?
What are they caused by?
1) Lobar pneumonia
2) Klebsiella and Staph aureus
What is the diagnosis if imaging shows there is an abnormal, persistent widening of airways, often with extension into the peripheral lung fields?
Bronchiectasis
What is the diagnosis if imaging shows bronchiectasis with situs inversus and dextrocardia?
Primary Ciliary Dyskinesia (Kartagener syndrome)
What causes the bat-wing appearance on imaging?
Anything favoring proximal vascular or airway involvement such as pulmonary edema and pneumonia
What causes the reverse bat-wing appearance on imaging?
Anything favoring peripheral involvement such as fibrosis
What causes a white-out appearance on imaging?
ARDS
If a coin lesion is laminated and diffuse on imaging what is the most likely diagnosis?
An old granuloma
If a coin lesion has a popcorn resemblance on imaging what is the most likely diagnosis?
Hamartoma
What malignancy can look like bilateral pneumonia on imaging?
1) Mucinous adenocarcinoma
2) Adenocarcinoma in situ
What malignancy has a “bubble lucency” like appearance on imaging?
Invasive Adenocarcinoma
What malignancy has a “ground glass” appearance on imaging?
Adenocarcinoma in situ
What malignancy causes masses with cavitation seen on imaging?
Squamous carcinoma
What condition is described as wedge-shaped on imaging?
Atelectasis
What malignancies can result in an atelectasis?
1) Endobronchial squamous carcinoma
2) Endobronchial carcinoid tumor
What characterizes a tension pneumothorax on imaging? When is this best seen?
1) Mediastinal shift
2) Expiratory CXR
Diagnosis?
Bronchopneumonia
Diagnosis?
Lobar Pneumonia
Diagnosis?
Abscess formation in lobar pneumonia
Diagnosis?
Bronchiectasis
Diagnosis?
Bronchiectasis
Diagnosis?
Primary ciliary dyskinesia with dextrocardia (Kartagener syndrome)
Diagnosis?
Pulmonary edema (Bat wing pattern)
