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. Author manuscript; available in PMC: 2020 Sep 1.

Published in final edited form as: Clin Imaging. 2019 May 31;57:110–114. doi: 10.1016/j.clinimag.2019.05.017

Table 3:

Comparison of imaging features between stable/decreased PFNs and increased PFNs

		Decreased/Stable PFN (n=109)	Increased PFN (n=3)	p Value
		N (%)	N (%)
Shape^*	Triangle	77 (76.2%)	2 (66.7%)	0.707
	Oval/round	24 (23.8%)	1 (33.3%)
	Rectangular/dumbbelled	8	0
Septal Connection	No	92 (84.4%)	2 (66.7%)	0.425
	Yes	17 (15.6%)	1 (33.3%)
Above/below Carina	Above	26 (24.1%)	1 (33.3%)	0.713
	Below	82 (75.9%)	2 (66.7%)

^*

Rectangular and dumbbelled shape nodules were not included in the test due to low incidence.