Prevalence and Characteristics of Lung Involvement on High Resolution Computed Tomography in Patients with Ankylosing Spondylitis: A Systematic Review

Table 1

Prevalence of thoracic HRCT abnormalities in patients with AS.

	Casserly et al. [15]	Turetchek et al. [17]	Senocak et al. [18]	Kiris et al. [19]	El Maghraoui et al. [20]	Souza et al. [21]	Altin et al. [22]	Ayhan-Ardic et al. [23]	Sampaio-Barros et al. [24]	Baser et al. [25]	Total: n (%)
N	26	21	20	28	55	17	38	20	52	26	303
Prevalence of abnormalities on HRCT	18	15	17	18	31	15	27	10	21	13	185 (61)
Apical fibrosis	2		3		5	1	5	2	1	2	21 (6.9)
Emphysema	4	2	9		5	6	13	2	5	9	55 (18.1)
Brochiectasis	6	2	3	2	4	2		2	4	8	33 (10.8)
Ground glass attenuation	2	1	6	2	2		14			7	34 (11.2)
Non specific lung interstitial abnormalities	11	6	9	10	26	10	19		10		101 (33.3)
Lymphadenopathy	3								6		9 (2.9)
Pleural thickening	1	6	9		13	3	13		4	4	53 (17.4)
Micronodules	1	2	8	7	7	1			3	4	33 (10.8)
Pulmonary cysts						3			1		4 (1.3)
Bronchial wall thickening	4	6		2			12				24 (7.9)
Sub-pleural band	6				6						12 (3.9)
Parenchymal band	8		3	5	13		14			3	46 (15.1)
Irregular interfaces	3				4						7 (2.3)
Blebs	3				7						10 (3.3)
Intrelobular septal thickening	7	7		1			16				31 (10.2)
Linear septal thickening		6	9							6	21 (6.9)
Pleural tags	4										4 (1.3)