Intro; Preface; Contents; Contributors; Part I: Bariatric Complications; 1: Surgery for Acute Bariatric Complications; Introduction; Initial Assessment and Workup; General Complications; Procedure-Specific Complications: Gastric Banding; Procedure-Specific Complications: Sleeve Gastrectomy; Procedure-Specific Complications: Roux-en-Y Gastric Bypass; Conclusion; References; 2: Radiology in the Acute Bariatric Patient; Introduction; Abdominal Imaging; Abdominal Radiographs; Upper GI; Computed Tomography; MRI and Ultrasound; Surgical Procedures and Complications; Roux-en-Y Gastric Bypass

Complications of RYGBLeak; Bowel Obstruction; Marginal Ulcer; Sleeve Gastrectomy; Laparoscopic Adjustable Gastric Band; Pulmonary Embolism; Conclusion; References; 3: Interventional Endoscopy: Endoluminal Therapy - Stenting, Clipping, and Suctioning; Introduction; Leaks; Stenting; Clipping; Suctioning; Endoscopic Internal Drainage (EID); Bleeding; Stenosis/Stricture; Gastric Band Erosion; Conclusion; References; 4: Acute Nonsurgical Complications of Weight Loss Surgery; Epidemiology; Nutritional Derangements; Vitamin B12 and Folate; Thiamine (B1); Calcium and Vitamin D

Fat-Soluble Vitamins (A, E, K)Iron; Biliary Complications; Hypoglycemia; Psychiatric Complications; Conclusion; References; Part II: Acute Presentations of Anal and Rectal Cancers; 5: Initial Presentation, Evaluation and Management of Acute Anorectal Malignancies; The Importance of Compassionate Care During the Active/Participatory Anorectal Exam; Comprehensive Documentation of the Examination of the Patient with a Suspected Anorectal Malignancy; The Role of Endoscopy at Initial Presentation; Anal Exam Under Anesthesia; Tissue Diagnosis and Documentation of EUA; Conclusion; Suggested Reading

6: Endoscopic and Transanal Approaches for Acute Anal and Rectal CancersIntroduction; Preoperative Workup; Treatment; Transanal Excision (TAE); Transanal Endoscopic Microsurgery (TEM); Transanal Minimally Invasive Surgery (TAMIS); Endoscopic Mucosal Resection (EMR)/Endoscopic Submucosal Dissection (ESD); Robotic Surgical Approaches; Advanced Endoscopy; Conclusion; References; 7: Abdominal and Perineal Operative Considerations for Acute Presentations of Anal and Rectal Malignancies; Rectal Cancer; Clinical Presentation; Initial Management; Surgical Management; Special Circumstances

Perforation while undergoing neoadjuvant therapyThe Anticoagulated Patient; Abscess Formation; Anal Cancer; Clinical Presentation; Initial Management; Indications for Surgical Management; Surgical Approach; Perineal Approach; Abdominal Approach; Diversion; Abdominoperineal Approach; Conclusions; References; 8: The Role of Radiology in Obstructing or Bleeding Anal and Rectal Cancers; Introduction; Obstruction and Malignancy; Abdominal Radiography; Computed Tomography (CT); Contrast Enema; Magnetic Resonance Imaging (MRI); Bleeding from Anorectal Malignancies; CT Angiography (CTA); Scintigraphy