Lung Cancer

Question 1

Typical findings on cxr of lung cancer

Answer 1

Irregular nodule/ mass
Spiculated margins
Central or peripheral
Associated ipsilateral hilar +/- mediastinal LAD
Ipsilateral pleural effusion

Question 2

2 types of lung cancer

Answer 2

Small cell lung carcinoma
15-20%
Smokers
Aggressive, often metastatic at diagnosis

Non-small cell lung carcinoma
80-85%
3 types – adeno-, squamous and large cell
Adenocarcinoma is commonest, smokers and in non-smokers

Question 3

Answer 3

Adenocarcinoma

Question 4

Answer 4

Bifocal bilateral adenocarcinoma

Question 5

Answer 5

Squamous cell carcinoma

Question 6

Answer 6

Small lung carcinoma

Question 7

Answer 7

Metastatic lung carcinoma

Question 8

Answer 8

Metastatic sarcoma:

Large, round, homogeneously enhancing
Solitary or multiple

Question 9

Answer 9

Metastasis

Question 10

How does previous breast cancer that metastasized to lungs look like

Answer 10

Pulmonary
Lymphangitic carcinomatosa:
Pleural effusions
Septal lines
Nodules
LAD

Question 11

How to diagnose lung carcinoma

Answer 11

-CT or US guided biopsy for peripheral tumors
-Bronchoscopic biopsy for central/ endobronchial tumors