Bedside ultrasound-guided water injection assists endoscopically treatment in esophageal perforation caused by foreign bodies: A case report

Figure 2 Operation. A: Ultrasound imaging: The needle was punctured into the cavity where the fishbone was located; B: Endoscopy examination: A small amount of purulent fluid was seen overflowing from the dissected lateral wall of the right piriform fossa under video endoscopy and laryngoscope; C: Endoscopy examination: The head of the foreign body (fishbone) was exposed; D: Fishbone removed: The removed fish bone measured 2.5 cm in diameter.