Fi gure
3: Aortic injection using a Judkins left (JL) catheter shows a sac
behind the ascending aorta, aortic arch, and descending aorta.
The patient was transferred to the medical ward for further evaluation
and follow-up. A chest X-ray was conducted, revealing a large
mediastinal mass (Figure 4). Her complete blood count and renal function
test were normal.