Centri-lobular pulmonary nodules on HRCT: incidence and approach for etiological diagnosis

Egyptian Journal of Radiology and Nuclear Medicine

Table 2 The significance of inhalation, inflammatory, autoimmune and edema/hemorrhagic lung diseases regarding lesion distribution and shape

Lesion characteristic/ P value		Inhalation	Inflammation	Autoimmune	Hemorrhage/EDEMA
Number	Few	0.102	0.773	0.067	0.516
Number	Multiple	0.207	0.279	0.113	0.430
Location	Unilateral	0.096	0.329	0.425	0.651
	Bilateral	0.096	0.329	0.425	0.651
	Upper lobe	0.006**	0.430	0.886	0.346
	Middle lobe and lingual	0.452	0.430	0.886	0.346
	Lower lobe	0.435	0.738	0.316	0.626
Shape	Well defined	0.004**	0.791	0.773	0.246
Shape	Ill defined	0.001**	0.279	0.606	0.197

Chi-square test, P value > 0.05: Non significant (NS); P value < 0.05*: Significant (S); P value < 0.01**: highly significant (HS)