Endoscopic ultrasound examination revealed an approximately 4-cm well-defined hypoechoic homogeneous mass in the head of the pancreas (Figures 4, 5); with adjacent 2-cm well-defined hypoechoic ...

Hypoechoic masses tend to be hypovascular ... which implies a primary site from the colon, pancreas, or ovary (Fig. 8). Thyroid carcinoma metastases may also calcify. One of the strengths of ...