Direct visualization of postoperative aortobronchial fistula on computed tomography

Table 4 Symptoms and image findings

Case	CT	Fever	Hemoptysis	Peri-graft air location	Around graft with air (peri-graft air)
					Fluid	Ring enhancement	Endoleak/Pseudo-aneurysm	Direct confirmation of ABF	Bronchodilation	Atelectasis	Dirty fat sign	Pulmonary hemorrhage
1	Initial	No	No	As	No	-	-	Rt B3	Rt B3	No	No	No
	Latest	No	No	As	No	-	-	Rt B3	Rt B3	No	No	No
2	Initial	No	No	Arc	(+)	-	-	Lt B1 + 2	Lt B1 + 2	(+)	No	No
	Onset	(+)	No	Arc-Des	(+)	(+)	Type 2 endoleak	Lt B1 + 2, B6	Lt B1 + 2, B6	(+)	(+)	No
	Latest	(+)	(+)	Arc-Des	(+)	(+)	Type 2 endoleak	No	(+)	(+)	(+)	No
3	Initial/Onset	No	(+)	Arc-Des	(+)	(+)	Pseudoaneurysm	No	(+)	(+)	(+)	No
	Latest	(+)	No	Arc-Des	(+)	-	-	No	(+)	(+)	(+)	No
4	Initial/Onset	(+)	No	Arc	(+)	-	-	No	(+)	(+)	(+)	No
	Latest	(+)	No	Arc	(+)	-	-	Lt B1 + 2	Lt B1 + 2	(+)	(+)	No
5	Initial	No	No	Des	No	No	No	Lt B6	Lt B6	(+)	No	No
	Onset	(+)	(+)	Des	(+)	(+)	Type 2 endoleak	No	Lt B6	(+)	(+)	No
	Latest	No	No	Des	No	-	-	Lt B6	Lt B6	(+)	No	No
6	Initial	No	No	Des	(+)	-	-	No	(+)	(+)	No	No
	Latest	No	No	Des	(+)	No	No	No	(+)	(+)	No	No

CT: Computed tomography; ABF: Aortobronchial fistula; As: Ascending aorta; Arc: Arch; Des: Descending aorta; Rt: Right; Lt: Left.