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An 86-year-old man is evaluated for epigastric pain. He has a history of choledocholithiasis requiring ERCPs. MRCP reveals filling defects at the level of the common hepatic duct. On ERCP, surprisingly, the polypoid material (Figure) is extracted from the duct. Direct peroral cholangioscopy is performed with resection of the biliary lesion. Treatment of the base is then performed with radiofrequency ablation. Which of the following is true?
A 75-year-old man is admitted to the hospital with a high-grade small-bowel obstruction secondary to metastatic cecal cancer invading the ileocecal valve (Figure). Which of the following is false regarding endoscopic management of colon cancer?
A 57-year-old woman with obesity class III (body mass index: 42 kg/m2) and a history of open cholecystectomy secondary to gangrenous cholecystitis presents for weight regain of 25 kg from nadir weight loss after surgical sleeve gastrectomy 7 years ago. An upper GI series demonstrates gastric sleeve dilation. Given her poor surgical candidacy, she is offered endoscopic sleeve gastroplasty (ESG) with argon plasma coagulation-reinforced suturing (Figure). Which of the following is true about primary ESG for weight loss?
A 41-year-old woman with a history of Roux-en-Y gastric bypass a decade ago undergoes an endoscopy, given progressive dysphagia. She is found to have a benign gastrojejunostomy stricture, which is treated with a fully covered self-expanding metal stent affixed to the esophageal mucosa with full-thickness sutures. However, a month after placement, dysphagia recurs. Endoscopy reveals significant tissue ingrowth, resulting in upstream flange obstruction. Implementing the stent-in-stent technique (Figure) manages this complication. Which of the following is true regarding the use of stents in the management of GI luminal obstruction?
A 29-year-old patient with a psychiatric history and foreign body ingestions presents with 1 day of moderate to severe abdominal pain. She is normotensive, tachycardic, and febrile. CT scan shows a foreign body consistent with a ballpoint pen in the second portion of the duodenum. Free fluid is in the subhepatic space, but pneumoperitoneum is not present. Attempts at endoscopic retrieval are undertaken with surgical assistance on standby. ASGE guidelines suggest or recommend which of the following for foreign body ingestions within reach of an upper endoscope?
A 73-year-old man with atrial fibrillation on antithrombotic therapy and congestive heart failure presents with weight loss and iron deficiency anemia. He undergoes bidirectional endoscopy and video capsule endoscopy that reveal only this large polyp in the stomach. The polyp is described as sessile, smooth, and lobulated and is located along the greater curvature and posterior gastric wall. Biopsies suggest a benign hyperplastic polyp, but given the size, the patient is referred for resection. Pathology returns as a hamartomatous polyp. What polyposis syndrome is this type of polyp usually associated with?
A 52-year-old woman with a history of metastatic gastric cancer presents with gastric outlet obstruction. She undergoes EUS-guided gastrojejunostomy for relief. A month later, she is readmitted with abdominal pain, distension, and new-onset diarrhea. CT shows progression of disease with ascites. Paracentesis improves her abdominal pain, but her diarrhea persists. Upper endoscopy is performed. What is the cause of her diarrhea?