Surgery Shelf Prep!

Achalasia can be tricky, and it is absolutely fair game for the Surgery Shelf. In this episode of Surgery Shelf Prep!, Chris and Mars break down the classic presentation of progressive dysphagia to both solids and liquids, regurgitation of undigested food, chest pain, and weight loss. They walk through the key pathophysiology of failed lower esophageal sphincter relaxation and loss of distal esophageal peristalsis, then connect it to the classic bird-beak finding on barium swallow and the gold-standard diagnosis with esophageal manometry.The episode also covers the high-yield management pathway, including pneumatic dilation, Heller myotomy, POEM, and when to use botulinum toxin or medical therapy in poor surgical candidates. Chris and Mars also highlight the must-know differentials, including pseudoachalasia from malignancy, diffuse esophageal spasm, Zenker diverticulum, eosinophilic esophagitis, and scleroderma.If you want a focused, shelf-ready review of one of the esophagus’s favorite board topics, this episode is a great one to lock in.

In this episode of Surgery Shelf Prep, Chris and Mars break down esophageal perforation, a rare but life-threatening emergency classically seen after forceful vomiting or esophageal instrumentation. They review the classic presentation of sudden severe chest pain, dyspnea, and subcutaneous emphysema, explain why mediastinal contamination can rapidly lead to sepsis, and walk through the high-yield diagnosis with CT or esophagography showing contrast extravasation. The episode also covers urgent management with NPO status, IV broad-spectrum antibiotics, IV proton pump inhibitor, and emergent surgical consultation, plus key differentials like Mallory-Weiss tear, myocardial infarction, aortic dissection, and pneumothorax. Perfect for shelf review and rapid recognition of this surgical emergency.

Pancreatic cancer can look subtle at first, but on the shelf it is a major diagnosis you cannot miss. Painless jaundice, weight loss, dark urine, pale stools, back pain, and Trousseau syndrome should all make you think pancreatic ductal adenocarcinoma fast.In this episode of Surgery Shelf Prep, Chris and Mars walk through the classic presentations of pancreatic head versus body and tail tumors, the key risk factors, and the high-yield diagnostic workup. They break down when to start with ultrasound, when computed tomography is the better next step, why carbohydrate antigen 19-9 is not a screening test, and how to think through resectable versus unresectable disease.You will learn the difference between Whipple candidates and patients who need palliative treatment, plus the smart shelf distractors that can mimic pancreatic cancer, including cholangitis, chronic pancreatitis, and peptic ulcer disease.Perfect for medical students who want a fast, organized review of one of the highest-yield hepatopancreaticobiliary topics for the surgery shelf.

Burning epigastric pain, meal-related symptoms, and sudden complications like bleeding or perforation make peptic ulcer disease a classic Surgery Shelf topic.In this episode, Chris and Mars break down the two major causes, Helicobacter pylori and nonsteroidal anti-inflammatory drugs, then walk through the key differences between gastric and duodenal ulcers, how to diagnose them, and when to use endoscopy.They also cover the high-yield complications you cannot miss, including bleeding, perforation, gastric outlet obstruction, and malignancy risk, plus the core treatment plan with proton pump inhibitors and bismuth quadruple therapy.

Pancreatitis is a classic Surgery Shelf topic because the exam loves the presentation, the diagnosis criteria, and the management steps. In this episode, Chris and Mars break down acute versus chronic pancreatitis, the major causes like gallstones, alcohol, and hypertriglyceridemia, and the key diagnostic rule of needing two of three criteria for acute pancreatitis.They also cover the high-yield treatment plan, including aggressive Lactated Ringer resuscitation, pain control, when to feed patients, when ERCP is actually indicated in gallstone pancreatitis, and the complications you cannot miss, like necrotizing pancreatitis, pseudocysts, organ failure, steatorrhea, and pancreatogenic diabetes.

Gastrointestinal bleeding is a must-know Surgery Shelf topic because the first step is always the same: decide if it is an upper bleed or a lower bleed, then determine how sick the patient is. In this episode, Chris and Mars break down the classic presentations of hematemesis, melena, and hematochezia, then walk through the most important causes like peptic ulcer disease, varices, diverticulosis, angiodysplasia, hemorrhoids, and anal fissures.They also cover the high-yield workup and management, including initial stabilization, when to use upper endoscopy versus colonoscopy, when computed tomography angiography is the right next step, and the key medications for upper gastrointestinal bleeding such as proton pump inhibitors, octreotide, and antibiotics in cirrhotic patients. This is a fast, shelf-focused review built to help you quickly recognize the source of bleeding and choose the correct next step.

Crampy abdominal pain, vomiting, abdominal distension, and obstipation? That is classic Small Bowel Obstruction, and this is one of the most high-yield Surgery Shelf topics because the exam loves to test both recognition and urgency. In this episode, Chris and Mars walk through the textbook presentation, the most common causes like adhesions and hernias, and the key pathophysiology behind bowel dilation, third-spacing, ischemia, necrosis, and perforation.They also break down the diagnosis step by step, including abdominal X ray findings, why computed tomography is the best test, and how to distinguish Small Bowel Obstruction from ileus. On the management side, the episode covers bowel rest, nasogastric decompression, intravenous fluids, electrolyte replacement, and the major red flags that mean the patient needs urgent surgery, including closed-loop obstruction, strangulation, ischemia, perforation, and peritonitis.This is a tight, shelf-focused review built to help you recognize Small Bowel Obstruction quickly and know exactly when conservative management is appropriate versus when it is time for the operating room.

Rectal prolapse looks obvious… until the shelf exam tries to trick you with hemorrhoids, mucosal prolapse, and the wrong operation.In this episode of Surgery Shelf Prep, Chris and Mars break down rectal prolapse step-by-step: how to identify it fast using concentric versus radial folds, why adults need colonoscopy to rule out a lead point malignancy, and how to choose the right surgery based on patient frailty. We also hit emergency management of an incarcerated prolapse, plus high-yield procedures like abdominal rectopexy, Altemeier, and Delorme. Perfect for med students who want clean algorithms and fewer missed questions.

Hemorrhoids are common and easy points—but they’re a high-yield shelf exam trap, especially when the question is really testing anatomy, rectal bleeding workup, and when to escalate treatment.In this episode of Surgery Shelf Prep, Chris and Mars break down internal versus external hemorrhoids using the dentate line, the classic “painless dripper” versus “painful blueberry” presentations, and the stepwise management from fiber and sitz baths to rubber band ligation and excisional hemorrhoidectomy. We also cover the seventy-two-hour rule for thrombosed external hemorrhoids, when rectal bleeding needs colonoscopy, and the key distractors like rectal varices and Crohn’s disease.

Anal cancer is the classic “hemorrhoids” misdirection—and the shelf loves it. If you miss the risk factors, the lymph node drainage, or the treatment algorithm, you’ll bleed points fast.In this episode of Surgery Shelf Prep, Chris and Mars break down the high-yield presentation, key risk factors like Human Papillomavirus and Human Immunodeficiency Virus, why the dentate line predicts inguinal node spread, and the must-know management pearl: first-line treatment is combined chemoradiation, not surgery. We also cover staging imaging, when salvage abdominoperineal resection is indicated, and the common distractors that try to trick you on exam day.

Anorectal pain with fever is a surgery shelf trap you can’t afford to miss. If the skin looks normal but the digital rectal exam is exquisitely tender, think deep abscess—then move fast.In this episode of Surgery Shelf Prep, Chris and Mars break down perianal versus perirectal abscesses, the cryptoglandular origin at the dentate line, when imaging is actually needed, and the non-negotiable management rule: pus must be drained. We also cover who needs antibiotics, how fistula-in-ano shows up after drainage, and the key distractors that love to steal points on exams.

Ogilvie Syndrome can fool you: the colon looks obstructed, the belly is huge, but there’s no mechanical blockage. In this episode of Surgery Shelf Prep, Chris and Mars break down Acute Colonic Pseudo-Obstruction with the exact shelf-style framework you need—classic patient scenarios, key imaging findings, critical cecal diameter cutoffs, and the stepwise treatment algorithm from conservative management to neostigmine, colonoscopic decompression, and when to rush to surgery. We also cover the most testable traps, including how to quickly distinguish Ogilvie from ileus, sigmoid volvulus, and toxic megacolon.