Table 2.

Pulmonary Findings

		n	%
Predominant Pulmonary Finding	Pneumonia	49	14.2%
	Nodular	130	37.8%
	Cavitary	154	44.8%
	Fibrocavitary	8	2.3%
	Pleural	2	0.6%
	Unknown	1	0.3%
Dominant Nodule Characteristic	Sharp border	142	69.6%
	Hazy border	1	0.5%
	Calcification	21	10.3%
	Rarefaction*	11	5.4%
	Resolved	6	2.9%
	Unknown	23	11.3%
Dominant Cavity Wall Characteristic	Thin	88	46.8%
	Thick	59	31.4%
	Variable	32	17.0%
	Unknown	9	4.8%
Cavity Fluid Characteristic	Partial	22	11.7%
	Filled (blocked)	35	18.6%
	Variable†	2	1.1%
	No fluid	113	85.6%
	Unknown	9	4.8%
Time course of Cavity Development	During acute primary	47	25.0%
	Soon after primary	11	5.9%
	Excavation of nodule	13	6.9%
	No history of primary	92	48.9%
	Unknown	25	13.3%
Pulmonary Cavity Course	Stationary	58	30.9%
	Increased	36	19.1%
	Decreased	3	1.6%
	Varied†	36	19.1%
	Blocked	31	16.5%
	Resolved	10	5.3%
	Ruptured	5	2.7%
	Unknown	9	4.8%

*Rarefaction refers to pulmonary nodules with areas of decreased density.

†These patients had multiple pulmonary cavities with individual cavities having different characteristics.