Endoscopic<unk>  may be helpful in the diagnosis of VIPoma. Finding on<unk>  suggestive of VIPoma is hypoechoic tumor in the distal part of pancreas.
VIPoma echocardiography or ultrasound
VIPoma physical examination
Warthin's tumor echocardiography or ultrasound
Warthin's tumor CT
VIPoma MRI
VIPoma other diagnostic studies
Warthin's tumor physical examination
VIPoma CT