When a solitary pulmonary nodule is seen on computed tomography (CT), which of the following radiological features suggest it is benign?
a) Air bronchograms within the nodule
b) Amorphous calcification within the nodule
c) CT attenuation of -10 Hounsfield units (HU)
d) Lobulated outline of the nodule
e) Enhancement of the nodule by less than 15 HU following intravenous contrast
When a solitary pulmonary nodule is seen on CT, the radiological features suggesting it is benign include:
a) Air bronchograms within the nodule.
c) CT attenuation of -10 Hounsfield units (HU).
These features are more commonly associated with benign lesions.