An overlooked "bud" of an aortic aneurysm on a chest radiography resulted in a saccular aortic aneurysm 9 years later. This eye-catching image showed us the importance of not only documenting abnormalities in regular radiography but also further imaging evaluation for definitive diagnosis and continuous image follow-up.
Keywords: aortic aneurysm; chest X‐ray.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.