Man 54yo with epigastric pain crisis after eating.
Ultrasound of abdomen detected tumor at duodenum D3, size of 3 cm, hypoechoic (US 1), and CDI showed hypervascular tumor (US 2, US 3, US 4).
Gastrograph with barium meal detected filling defect at duodenum D 3 ( X-ray1, X-ray 2).
MSCT with CE:revealed this tumor very quick and high contrast enhanced (CT 1, 2, 3, 4).
Normal blood tests, and nothing abnormal detected on endoscopy.
What is your suggestion for diagnosis ?