Drainage of pancreatic fluid collections in acute pancreatitis: A comprehensive overview

Figure 4 Endoscopic transmural drainage. A: Endoscopic ultrasound guided transmural puncture of the lesser sac collection with needle tip in situ (arrow); B: Guidewire (arrow) passed through the needle into the collection; C: Double pigtail cystogastrostomy catheters (arrow) in the partially drained lesser sac collection; D: Axial; E: Sagittal computed tomography images showing lumen apposing metal stents (arrows).