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116
M. L. Collins and O. T. Okusanya
The principles of treatment are as follows:
1. Control soilage. (a) Drain widely, and in cases where repair cannot be
performed, place large bore drains near the defect. Endoscopic stenting and endoluminal vacuums may be useful adjuncts in these cases.
2. Debride devitalized tissue.
3. Perform a linear myotomy over the site of injury. (a) Mucosal injury is often greater than injury to the
muscularis.
4. Perform a two-layered repair using absorbable suture in the mucosa.
5. Buttress the repair with local tissue, pericardial fat, pleura, or an intercostal muscle ap.
6. Extensive injuries and/or unstable patients may necessi­tate esophageal exclusion.
(a) The esophagus should be mobilized and stapled shut,
with placement of a nasogastric tube at the time of exclusion.
(b) In patients with extensive injuries, consider place-
ment of a jejunal feeding tube at the time of index operation.

Clean Kills

• Failure to properly diagnose the problem.
• Failure to discuss proper resuscitation of an unstable patient enroute or just prior to operative intervention.
• Failure to institute prompt surgical intervention.
• Failure to get a follow-up study (repeat contrast esopha­gram with barium, or CT esophagram) in the setting of a patient with a high index of suspicion for esophageal per­foration but a negative initial water-soluble contrast esophagram.
• Failure to use proper principals to repair perforation (mucosal injury is typically larger than muscle injury; debride devitalized tissue; mucosal closure followed by muscle closure and wide drainage).
Words ofWisdom
This is one diagnosis where aggressive interventional treat­ment is warranted. Delays in surgical treatment, failure to properly resuscitate the patient, and failure to discuss the proper surgical principles can all lead to question failure.

Common Curveballs

• The patient continues to show a leak a day after properly performed repair. Mention adjuncts (endoscopic stenting, endoluminal vacuums) or return to OR for esophageal exclusion.
• The diagnosis of esophageal perforation and the need for acute surgical management will be made obvious, but the question will be about proper resuscitative measures prior to operation.

Bibliography

Jones WG 2nd, Ginsberg RJ. Esophageal perforation: a continuing
challenge. Ann Thorac Surg. 1992;53(3):534–43.
Kassem MM, Wallen JM.Esophageal perforations and tears StatPearls.
Last updated August 7, 2023. https://www.ncbi.nlm.nih.gov/books/
NBK532298/.
Sellke FW, Del Nido PJ, Swanson SJ. Sabiston and spencer sur-
gery of the chest. 9th ed. Elsevier; 2016. Sudarshan M, Cassivi SD. Management of traumatic esophageal injuries. J Thorac Dis. 2019;11(Suppl 2):S172–6.

Esophageal Varices

DarshakThosani andAdamBodzin
38
Way Question May BeAsked?
A 60-year-old male presents to the emergency department with multiple episodes of hematemesis. His past medical his­tory is signicant for acid reux, pancreatitis, and cirrhosis.
• Of note, the patient may be referred to you with the diag­nosis of bleeding varices from another hospital, or simply a patient with an upper gastrointestinal bleed.
How toAnswer?
1. Focused history and physical while simultaneously resus-
citating the patient (or you will have a great history on a dead patient).
(a) Resuscitation:
• ABCs—airway, breathing, circulation – Consider intubation for airway protection due
to encephalopathy or aspiration from massive hematemesis.
– Multiple large-bore IV access.
• Labs (including coagulation parameters), type and
cross
• Transfuse with goals of (hemoglobin >7, platelet
>50K, INR <1.5)
• Consider nasogastric tube and gastric lavage if
unclear of source/etiology of bleeding.
(b) History:
• Alcohol use
D. Thosani (*) Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: darshak.thosani@jefferson.edu
A. Bodzin Division of Transplant Surgery, Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: adam.bodzin@jefferson.edu
• Episodes of encephalopathy, bleeding varices
• History of pancreatitis
• History of peptic ulcer disease
• Viral hepatitis
• Other causes of chronic liver disease (primary sclerosing cholangitis, primary biliary cirrhosis, hemochromatosis, Wilson’s Disease)
(c) Physical Exam:
• Stigmata of liver disease
• Ascites
(d) Treatment:
• Decrease splanchnic circulation: Vasopressin (0.4U/min) and Octreotide (50ug bolus +25ug/h)
• Consider non-selective beta-blockers if blood pressure allows for it (Propranolol, Nadolol)
• Start antibiotics for spontaneous bacterial perito­nitis (SBP) prophylaxis for 7 days (e.g., Ceftriaxone 1 gm every 24h)
• Consider Sengstaken-Blakemore tube for uncon­trolled bleeding (must know proper insertion technique)
• Once hemodynamically stable - endoscopy to diagnose and treat—consider band ligation and sclerotherapy
• If endoscopy fails, consider TIPS with goal to decrease hepatic venous-portal gradient (HVPG) to less than 12mmHg
• If TIPS is unavailable and one cannot temporize with Sengstaken-Blakemore tube to transfer to higher level of care, then consider a surgical pro­cedure for uncontrolled bleeding
– Describe technique to perform a portosystemic
shunt.
Consider mesocaval shunt between inferior vena cava and superior mesenteric vein. This shunt does not complicate future liver transplantation options as it does not involve the porta hepatis.
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_38
117
118
D. Thosani and A. Bodzin
– Consider gastroesophageal devascularization,
or esophageal transection (but only state this option if prepared to describe in entirety)

Common Curveballs

• Child’s Class C (Bilirubin >3, albumin <2.8, severe asci­tes, severe encephalopathy, INR >2.3) will need to be considered for liver transplantation
• Upper GI bleeding secondary to peptic ulcer disease, esophagitis, gastric varices
• Patient will have had prior abdominal surgery
• Upper GI Bleeding will continue post-op (know how to manage)
– Continue resuscitation, ultrasound to conrm patency
of portosystemic shunt, endoscopic ligation or sclero­therapy, continue pharmacological agents mentioned above
• Asked to describe other shunting procedures
• Patient will become encephalopathic post-operatively
– Check CT/MRI to rule out intracranial lesion – Start lactulose, rifaximin, re-evaluate surgical shunt
• Patient will develop hepatic failure or hepatorenal syn­drome post-operatively
– Patient should be evaluated for liver transplantation – Dialysis may be necessary and can be used as support-
ive measure until transplant available
– No role for shunts as treatment measure
• Patient will aspirate or perforate after balloon tamponade
– In case of aspiration, start antibiotics to cover
pneumonia
– Perforation can occur from misplaced Blakemore tube
or necrosis from balloon tamponade
– One can attempt conservative management with chest
tube as patient will likely be too unstable for an opera­tive procedure (mortality high)
– Esophagectomy
• Patient with thrombosed splenic vein and bleeding gastric varices (needs only a splenectomy)

Clean Kills

• Not resuscitating the patient rst
• Not being able to describe your surgical procedure
• Describing the Sugiura procedure (you do not want to do something you have never done before and this is rarely done in the USA)
• Rushing to the operating room
• Not performing EGD/trying sclerotherapy/banding
• Not knowing how to use Sengstaken-Blakemore tube

Bonus Points

• Management of esophageal varices that have not bled – Small varices <5mm: screening EGD every year (for
ongoing liver injury) or every 2years (without ongoing liver injury)
– Medium/large varices: non-selective beta blockers
and/or esophageal variceal band ligation (EVL)
If performing EVL, then need EGD every 1–4weeks until eradication of varices then EGD every 6–12months
• Absolute contraindications to TIPS—heart failure, severe
pulmonary hypertension, severe tricuspid valve regurgita­tion, sepsis, and acute unrelieved biliary obstruction
– Controversial to TIPS for MELD>18
• Remember the biggest risk factor for mortality and early
rebleeding is the severity of liver disease
Words ofWisdom
Management of bleeding esophageal varices should be treated like other forms of upper GI bleeding with prompt diagnosis and resuscitation. These patients should be admit­ted to the ICU and should not be rushed off to surgery but must have a surgical plan in place in case of uncontrolled bleeding. Resuscitation, pharmacological agents, and endo­scopic therapy are the primary forms of management for acute esophageal variceal bleeding. Consider TIPS prior to surgical shunts. Surgical approach to the treatment of uncon­trolled esophageal variceal bleeding includes portosystemic shunts, esophageal transection, gastroesophageal devascu­larization, and liver transplantation. Do not attempt to per­form procedures (e.g., Sugiura procedure) if you have never done them.

Bibliography

Boregowda U, Umapathy C, Halim N, Desai M, Nanjappa A, Arekapudi
S, Theethira T, Wong H, Roytman M, Saligram S.Update on the management of gastrointestinal varices. World J Gastrointest Pharmacol Ther. 2019;10(1):1–21. https://www.ncbi.nlm.nih.gov/
pmc/articles/PMC6347650/. Accessed 22 Aug 2023.
Fischer JE, Ellison EC, Upchurch GR, Galandiuk S, Gould JC,
Klimberg V, Henke P, Hochwald SN, Tiao GM.Fischer’s mastery of surgery. 7th ed. Wolters Kluwer Health Adis (ESP); 2018.
Meseeha M, Attia M. Esophageal varices. Treasure Island,
FL: StatPearls; 2023. https://www.ncbi.nlm.nih.gov/books/
NBK448078/. Accessed 22 Aug 2023

Adult Gastroesophageal Reflux Disease

ElliusKwok
39
Way Question May BeAsked?
A 45-year-old male presents to your ofce with a history of epigastric pain, choking at night, and recent onset of asthma.
How toAnswer?
• Remember, the goal is to ensure that you are NOT about to perform a fundoplication on a patient with esophageal dysmotility
• First, complete history including symptom relationship to meals, tolerance of solids/liquids, alleviating factors (loose clothing, caffeine cessation, trial of H2 blockers or proton pump inhibitors (PPI))
• Second, complete physical exam including epigastric masses and lymph node basins (examiners will usually report that this exam will all be negative, but if you leave out the exam, the patient will end up having a pronounced supraclavicular node and the scenario will have changed to esophageal cancer with obvious metastasis)
• Appropriate preoperative studies including full labs, EKG, and chest X-ray
• Barium Upper GI to evaluate anatomy
– Look for reux, hernia, shortened esophagus, diver-
ticula, or motility disorders
• The next test should be an upper endoscopy to evaluate the severity of the reux
– Stage I—erythema and edema – Stage II—ulcerations – Stage III—stricture
• The rest of the work-up must include:
– Manometry to evaluate for ineffective motility (will
affect your choice of anti-reux procedure), document
E. Kwok (*) Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: Ellius.Kwok@jefferson.edu
the lower esophageal sphincter (LES) pressures, and determine the location of the LES
– 24 h pH monitoring to document the relationship
between patient’s symptoms and reux, obtain a DeMeester Score (>14.7 indicative of GERD), and provide a baseline for post-operative evaluation of suc­cess of surgery
– A gastric emptying study should be added in any
patient with a history of signicant belching or bloat­ing after meals and/or history of duodenal ulcer, since a delay in gastric emptying contributes to 10% of Nissen fundoplication failure

Surgical Treatment

• Remember the indications for surgery are: – Failure of medical therapy – Complications of reux disease – Young age (relative indication)
• Procedure: (assuming normal motility) = Nissen
Fundoplication (today usually performed with minimally invasive approach)
– Lithotomy position – 5–6 ports – Nissen performed over a bougie (54–56) – Start dissection at gastrohepatic ligament – Mobilize esophagus well into mediastinum – Divide short gastric vessels down 1/3 along greater curve – Posterior crural repair – 3cm anterior wrap – Take care not to injure the vagus nerve, stomach,
esophagus, or spleen
– Cannot make wrap too tight/ long or twist the stomach
when passing it around the esophagus
• Belsey, Dor, or Toupet can be performed in patients with
ineffective esophageal motility.
• Post-operative Upper GI with gastrogran prior to
feeding.
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_39
119
120
E. Kwok

Common Curveballs

• The patient has a malignancy/Barrett’s esophagus/stric­ture on endoscopy (non-dilatable stricture = operative treatment)
• The patient does not have classic manometry ndings
• Perforation during your procedure, by advancing bougie, or post-operatively on Upper GI
• Perform primary repair and cover with wrap if perforation is on the distal esophagus
• May attempt conservative management if perforation is small and has minimal contamination
• The patient will present with a stricture where rst you must rule out malignancy and dilate prior to any studies.
• The patient will have a “shortened esophagus” (be pre­pared to describe Collis gastroplasty)
• The patient will develop pneumothorax or bleeding from the liver/spleen. During procedure
• The patient will have perforation of esophagus during procedure or pre op work-up (change scenario)
• The fundoplication herniates into chest post-operatively (poor hiatal closure, the surgeon did not mobilize the esophagus enough)
• The fundoplication falls apart post-operatively (technical failure)
• The patient has “gas bloat” syndrome post-operatively (inadequate gastric emptying)
– This may improve with time – Consider pyloroplasty or conversion to partial wrap
• The patient has difculty swallowing post-operatively (surgeon made the fundoplication too tight)
Words ofWisdom
GERD affects 20–40% of the population and is largely due to incompetence of the LES.Additional contributing factors include presence of a hiatal hernia, delayed gastric emptying, and decreased esophageal motility. Symptoms include heart­burn, substernal chest pain, dysphagia, cough, increased sali­vation, and asthma-like symptoms. Diagnosis is based on clinical suspicion and conrmed with 24h pH monitoring. Additional testing includes barium swallow, EGD, and manometry. Biopsies should be taken in patients with long­standing or refractory disease to rule out Barrett’s esophagus or adenocarcinoma.
Treatment consists of lifestyle modications such as weight loss, smaller meals, smoking sensation, avoiding meals close to bedtime, and elevating the head of the bed. H2 blockers are effective in approximately 50% of patients. The most successful medications are proton pump inhibitors. Nissen fundoplication is reserved for those who are non­compliant with, or fail, medical therapy. 5–8 cm of intra­abdominal esophagus are necessary to perform a successful 3–5cm fundoplication to prevent reux. The fundoplication can be performed over a bougie to help prevent the wrap from being too tight. If the esophagus is short and intra­abdominal esophageal length is inadequate, a lengthening procedure such as Collis gastroplasty should be performed. A partial fundoplication (e.g., Dor, Toupet) should be con­sidered for those patients with motility disorders to avoid signicant dysphagia.

Bibliography

Clean Kills

• You forget to obtain Upper GI, EGD, or esophageal manometry
• You cannot describe the fundoplication or forget to men­tion dividing the short gastric vessels
• You take patient to surgery right away without trying medical therapy
• You do not take an adequate history and perform Nissen fundoplication on a patient with achalasia
• Discussing endoscopic measures to treat Barrett’s (cryo­therapy or photo-therapy)
• Discussing endoscopic measures to treat GERD (“Plicator,” “Stretta,” or newly approved injectable agents)
El-Serag HB, Sweet S, Winchester CC, Dent J.Update on the epidemiol-
ogy of gastro-oesophageal reux disease: a systematic review. Gut. 2014;63(6):871–80. https://doi.org/10.1136/gutjnl- 2012- 304269.
Savarino E, Bredenoord AJ, Fox M, Pandolno JE, Roman S, Gyawali
CP, International Working Group for Disorders of Gastrointestinal Motility and Function. Expert consensus document: advances in the physiological assessment and diagnosis of GERD. Nat Rev Gastroenterol Hepatol. 2017;14(11):665–76. https://doi.
org/10.1038/nrgastro.2017.130.
Khan M, Santana J, Donnellan C, Preston C, Moayyedi P. Medical
treatments in the short term management of reux oesophagi­tis. Cochrane Database Syst Rev. 2007;2:CD003244. https://doi.
org/10.1002/14651858.CD003244.pub2.
Katz PO, Gerson LB, Vela MF.Guidelines for the diagnosis and man-
agement of gastroesophageal reux disease. Am J Gastroenterol. 2013;108(3):308–29. https://doi.org/10.1038/ajg.2012.444.
Part IV
Duodenum

Duodenal Cancer

BenjaminDixson
40

Concept

Duodenal cancer will likely present as an incidentally found mass in the duodenum on imaging, although patients may also present with obstructions or bleeding. Be prepared to describe your initial workup, staging, and surgical steps. Keep in mind that location of the mass is a key factor. While adenocarcinoma is one of the etiologies that can present as a duodenal mass, other etiologies such as neuroendocrine tumor, lymphoma, and GIST may be presented.
Way Question May BeAsked?
“A 60-year-old male, with a history of excessive red meat intake and smoking, with weight loss was found to have duo­denal mass (D3) on CT imaging concerning for malignancy. CBC demonstrates hemoglobin of 8.2 from a baseline of 13 previously. What are your next steps?”
The case may also present a mass incidentally found on
imaging obtained for another reason, overt gastrointestinal bleeding, colicky abdominal pain with associated nausea and emesis from partial or complete obstruction, jaundice/ biliary obstruction, etc. Neuroendocrine tumors that are productive may present with a wide variety of symptoms depending on the substance produced (diarrhea, ushing, hypoglycemia, gastric/duodenal ulcers, sweating, etc.) (Snyder and Nguyen 2009).
How toAnswer?
History (Cameron and Cameron 2020)
• Risk factors
– Genetic
B. Dixson (*) General Surgery, Christiana Care Health System, Newark, DE, USA
Familial Adenomatous Polyposis (FAP) Hereditary nonpolyposis colon cancer (HNPCC, aka Lynch Syndrome) Cystic Fibrosis
– Health Conditions
Celiac Disease Crohn’s Disease
– Age/Gender
60–80years old
– Race
Black population
– Habits
Smoking Alcohol High salt Red meats
• Abdominal pain
• Nausea and vomiting
• Weakness/Lethargy
• Anemia
• Dark stool
• Obstruction
• Jaundice
Physical Examination
• Rarely able to palpate abdominal mass
• Abdominal distention/tympany (in setting of duodenal obstruction)
• Jaundice (in setting of biliary obstruction)
• Weight loss
Diagnostic Tests
• Full laboratory panel
– CBC: Anemia (bleeding mass) – LFTs: Direct hyperbilirubinemia, transaminitis (bili-
ary obstruction)
– CEA: May be elevated if adenocarcinoma (not sensi-
tive or specic)
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_40
123
124
B. Dixson
– Serum 5-HIAA and chromogranin A (may be elevated
if neuroendocrine tumor)
• Upper GI series
• Esophagogastroduodenoscopy (EGD), push enteroscopy
• Endoscopic ultrasound (EUS) with biopsy
• Staging CT scan of chest abdomen and pelvis with IV contrast (to evaluate extent of locoregional and metastatic disease)
• Can consider staging laparoscopy (separate trip to OR to rule out carcinomatosis, liver/omental/peritoneal metastases)
Location ofTumor
• D2 or any involvement of the ampulla/pancreas should have pancreaticoduodenectomy (Whipple procedure) (Benson etal. 2024).
• D1, D3 or D4 may have pancreaticoduodenectomy but can consider limited segmental resection in select cases (<2cm tumor, antimesenteric border, absence of heredi­tary condition) (Benson etal. 2024).
Comments onSurgery
Intraoperative staging of the abdomen (mesentery, omentum, peritoneum, etc.) should be performed.
Adequate lymphadenectomy should be performed (mini-
mum of eight lymph nodes) (Benson etal. 2024).
Pancreaticoduodenectomy (Whipple procedure) should
be considered for all duodenal malignancies, particularly if the second portion of the duodenum, ampulla and/or pan­creas are involved.
Key steps of pancreaticoduodenectomy (Sham et al.
2023):
1. Evaluate for resectability/metastasis
(a) Evaluate greater and lesser peritoneal sac. Enter
lesser sac (avoid injury to gastroepiploic vessels)
2. Resection
(a) Kocher maneuver (b) Continue dissection toward the patient’s left until the
left renal vein is exposed (c) Dissect out porta hepatis (d) Gastroduodenal artery test clamping and transection (e) Gastric antral transection (f) Jejunal transection (g) Cholecystectomy (h) Pancreatic transection
3. Reconstruction (a) Pancreaticojejunostomy anastomosis
(b) Hepaticojejunostomy anastomosis (c) Gastrojejunostomy anastomosis
Limited segmental resection may be considered if limited to rst, third, or fourth portion of duodenum (particularly antimesenteric border) in absence of hereditary condition (Benson etal. 2024).
Key steps of limited segmental resection:
1. Clear identication of tumor site.
2. Stapled transection proximal and distal (consider re-
excision if margin <5mm).
3. Excision of the portion of duodenum from its retroperito-
neal attachments.
4. Likely will need hand sewn anastomosis.
5. Lymph node evaluation and dissection is imperative due
to lower yield of lymph nodes sampled with limited seg­mental resection.
Consider obtaining a frozen section of margins intra­operatively if concerns about margins. If margins <5mm on the frozen section, consider re-excision of the involved margin.
Minimally invasive techniques may be considered by experienced surgeons.
You can consider adjuvant and neoadjuvant treatments.
May perform gastrojejunostomy bypass (vs. decompres­sive G tube and feeding J tube) if unresectable for palliation.

Common Curveballs

• Patient has peritoneal metastases discovered intraopera-
tively.
• Patient has a postoperative leak.
• Patient has a postoperative anastomotic bleed.
• Patient is malnourished preoperatively.
• Pathology indicates lymphoma.
• Differentiating between resectable disease and border-
line/unresectable disease (similar to pancreatic cancer).

Clean Kills

• Incomplete workup and staging.
• Neglecting to evaluate for metastases prior to surgical
resection (staging imaging, staging laparoscopy, evalua-
tion at time of planned resection).
• Performing limited segmental resection of D2 tumor or
with involvement of the ampulla/pancreas.
• Not checking the margins of resection by frozen section.
40 Duodenal Cancer
125

Summary

Duodenal cancer is a relatively rare pathology encoun­tered clinically; however its workup and management are essential to understand for the boards. Appropriate preoperative staging is a must in all cases of malignancy and being able to describe a Whipple procedure concisely yet thoroughly is key. You should have a solid under­standing of how to help patients with unresectable dis­ease (laparoscopic biopsy, chemo port placement, enteral access, etc.).

Bibliography

Benson AB, Venook AP, Pederson K, et al. NCCN clinical practice
guidelines in oncology—small bowel adenocarcinoma. National Comprehensive Cancer Network; 2024. https://www.nccn.org/pro-
fessionals/physician_gls/pdf/small_bowel.pdf
Cameron JL, Cameron AM.Management of small bowel tumors. In:
Current surgical therapy. 13th ed. Elsevier Health Sciences; 2020.
p.138–43. 978-0-323-64059-6. Sham JG, Mahadey V, Pillarisetty VG. Major pancreatic resections
(surgical oncology/fellowship level). The SCORE Portal From the
Surgical Council on Resident Education; 2023. https://www.surgi-
calcore.org/modulecontent.aspx?id=1000394
Snyder B, Nguyen A.Small bowel tumors. In: How to win on the
American Board of Surgery Certifying Exam. Trafford Publishing;
2009. p.125–6. 978-1-4269-1582-6.

Gastric Outlet Obstruction

KirstenLung
41
Way Question May BeAsked?
A 70-year-old female presents to the Emergency Department with progressive nausea, non-bilious vomiting, epigastric pain, early satiety, abdominal distention, and weight loss. Her past medical history is signicant for smoking and alco­hol use disorder. On admission, she appears to have dry mucous membranes and mild sinus tachycardia. CT imaging is concerning for an obstructing mass in the gastric antrum.
How toAnswer?
Management
• Focused history and physical exam while simultaneously resuscitating the patient
– Resuscitation:
ABCs—airway, breathing, circulation
• Consider intubation for airway protection due to aspira­tion from vomiting
Hypovolemia and metabolic derangements if hav­ing severe vomiting
• IV access
• Labs (basic metabolic panel, complete blood count, mag­nesium, phosphate, prealbumin, lactate)
• IV uids, electrolyte repletion
– History:
Benign versus malignant etiology of mechanical obstruction and motility disorders
• Onset and spectrum of symptoms may suggest one etiology over another
– Benign causes—early satiety and bloating
Peptic ulcer disease (NSAIDs versus H. pylori etiology), polyps, ingestion of corro-
K. Lung (*) Department of Surgery, Thomas Jefferson University Hospital, Philadelphia, PA, USA e-mail: Kirsten.Lung@jefferson.edu
sive substances, anastomotic strictures, inammatory bowel disease, eosinophilic gastroenteritis, Bouveret syndrome (gall­stone ileus via a biliary-enteric stula), annular pancreas, pancreatitis, bezoars, infection, percutaneous endoscopic gastros­tomy tube migration, intramural hematoma, gastric volvulus
– Malignant causes—pain, vomiting,
malnutrition
Gastric cancer, duodenal cancer, pancreatic adenocarcinoma, locally advanced cholan­giocarcinoma or gallbladder cancer, gastric lymphoma, gastric carcinoid Extrinsic compression from large local can­cer (i.e., hepatocellular carcinoma, adreno­cortical carcinoma)
– Motility Disorders—gastroparesis
Diabetes, prior viral illness, medications (opiates), damage to vagus nerve, paraneo-
plastic or inltrative process (amyloidosis) Age of presentation—duodenal atresia versus duo­denal web versus hypertrophic pyloric stenosis in neonates Prior history of surgery
– Physical Exam:
Signs of chronic malnutrition
• Cachexia
• Volume depletion
• Dental erosions Succussion splash
• Rocking patient back and forth while listening
over stomach for splashing
• Test is positive if splash present 3 or more hours
after drinking uids Palpable thickened stomach with visible gastric peristalsis through the skin Palpable abdominal mass (hypertrophic pyloric ste­nosis in neonates)
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2025 M. Neff et al. (eds.), Passing the General Surgery Oral Board Exam, https://doi.org/10.1007/978-3-031-78244-2_41
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