 Incidental findings are defined as findings that are unrelated to the clinical indication for the imaging examination performed.
 Arterial abnormalities refer to deviation from what is considered normal in vascular anatomy, this can include anatomic variants and vascular rings.
Aim of the work
 The aim of this study is to illustrate and describe arterial abnormalities incidentally found on CT imaging of chest and abdomen.
Patients & Methods
 A total of 1600 CT scans were reviewed retrospectively at the Alexandria main University hospital.
 Thoracic and abdominal aorta and its branches were analyzed on chest and abdominal CT scans, anatomical variations and/or abnormalities that were incidentally detected were noted.
 Data sets were available on a specific work station with complex image analysis software that produces 3D + MIP images.
Conclusion
 Anatomic variants are common entities and are now being detected frequently during imaging, reporting these variants will enlighten the surgeon and avoid complications during interventional and surgical procedures. Some of life threatening emergencies are silent and its detection incidentally can be life saving.