Tab. II.

Models for quantitative assessment of the probability of lung lesion malignancy

Variable	Swensen [19]	Dewan [21], Gurney [17, 22]	Gould [16]	Mc Williams [20]
Age	(+)	(+)	(+)	(+)
Sex	(–)	(–)	(–)	(+)
Tobacco smoking	(+)	(+)	(+)	(–)
Time since quitting smoking	(–)	(–)	(+)	(–)
History of neoplastic disease	(+)	(+)	(–)	(–)
Lung cancer within the family	(–)	(–)	(–)	(+)
Pulmonary emphysema	(–)	(–)	(–)	(+)
Tumor outline characteristic	(–)	(+)	(–)	(–)
Presence of spiculated outlines	(+)	(–)	(–)	(+)
Location	(–)	(+)	(–)	(–)
Upper lobe location	(+)	(–)	(–)	(+)
Tumor diameter	(–)	(+)	(+)	(+)
Lesion type (solid, part-solid, non-solid)	(–)	(–)	(–)	(+)
Hemoptysis	(–)	(+)	(–)	(–)
Lesion increase	(–)	(+)	(–)	(–)
Number of nodules	(–)	(–)	(–)	(+)
Wall thickness of cavitary lesions	(–)	(+)	(–)	(–)
Calcifications	(–)	(+)	(–)	(–)
Contrast enhancement > 15 HU	(–)	(+)	(–)	(–)
Metabolism in PET	(–)	(+)	(–)	(–)

PET – positron emission tomography