Computed tomography-guided percutaneous core needle biopsy in pancreatic tumor diagnosis

Figure 5 Percutaneous computed tomography-guided core needle biopsy of a pancreatic lesion using transgastric access. A: Non-enhanced computed tomography showing a poorly defined nodule in the body of the pancreas (arrow). A posterior approach was considered difficult because of the interposition of large vessels in the needle path in the prone position, therefore, an anterior transgastric approach was used; B: Biopsy needle (20 G) placed adjacent to the pancreatic lesion through the stomach.