The definitive diagnosis comes from pathological evaluation of the affected vessel, however<unk>  can be suspected based on imaging of the affected vessel using CT scan, MRI or angiography. If suspected at the time of angiography, intravascular ultrasound is of use in making the diagnosis.
Adventitial cystic disease
Eustachian tube dysfunction
Patulous Eustachian tube
Cystic fibrosis
Tracheal agenesis
Vocal cord cyst
Tracheobronchopathia osteochondroplastica
Bronchomalacia