Lung cancer Flashcards
1
Q
Definition of a pulmonary nodule
A
Size ≤ 30 mm
2
Q
Definition of a pulmonary mass
A
Size > 30 mm
3
Q
What type of calcification is associated with malignancy?
A
Amorphous (mucinous tumors)
4
Q
Are calcifications typically benign or malignant?
A
Benign
Lesions without calcifications can be either benign or malignant
5
Q
Popcorn calcifications
A
Hamartoma (benign)
6
Q
Chance of being malignant if nodule < 3 mm
A
0.2%
7
Q
Chance of being malignant if nodule 4-7 mm
A
2.7%
8
Q
Features suggestive of benign etiology, other than size (3)
A
- Clustering (infection)
- Triangular (lymph nodes)
- Subpleural
