-
Poultry
- Campylobacter jejuni
- Salmonella
-
Bloody diarrhea
- 1. Camplobacter jejuni
- 2. E Coli (0157:H7-enterohemorrhagic)
- 3. Salmonella
- 4. Shigella
- 5. Yersinia
- 6. C diff
- 7. E histolytica
-
Pseudoappendicitis
Yersinia
-
Treating Hep C
IFN alpha & ribavirin
-
Treating Hep B
Peg IFN alpha or antivirals
(lamivudine, adefovir, entecavir, telbivudine)
-
Vaccination for Hep B
+ anti-HBs
-
Impaired peristalsis & LES relaxation
Achalasia
-
Progressive dysphasia solids & liquids. Barium swallow: birds beak. Diagnosis? Manometry? Next step?
Achalasia
- LES presure
- Incomplete LES relaxation
- Peristalsis
EGD to R/0 malginancy
-
Treatment of Achalasia:
- Nitrates
- CCB
- Pneumatic dilation
- Botox
- Myotomy (butGERD)
-
Corkscrew barium swallow. diagnosis? Treatment?
Diffuse Esophageal Spasm
CCB, nitrates, TCA's
-
Regurgitation of food days after eating, halitosis, dysphagia. Diagnosis? Treatment?
Zenker Diverticulum
- Cricopharyngeal myotomy
- Diverticulectomy
-
Low pressure in LES, test for dx?
GERD
Esophageal pH monitoring
-
Barrett's esophagus
Columnar metaplasia of distal esophagus
-
Labs for gastritis
- + Urea Breath Test
- + IgG antibody H. pylori
- Ratio of pepsinogen- AI
- Antral Biopsy
-
Type A Chronic Gastritis: site, path, labs, associations
- Site: fundus
- Path: autoantibodies to parietal cell
- Labs: Gastric H, Gastrin
- Associated: PA, achlorhydria, thyroidiyis
-
Type B Chronic Gastritis: site, path, labs, associations
- Site: Antrum
- Path: H. Pylori
- Labs: Gastric H
- Associated: PUD, Gastric Ca
-
Treating H. pylori:
PPI, clarithromycin, amox or metronidazole x7-14 days
-
Free Air under diaphragm
Perforation: of PUD
-
Posterior Ulcers
Hemorrhage via gastroduodenal artery
-
Anterior Ulcers
Perforation
-
Barium swallow suggesting malignancy:
- 1. Abnormal appearing mucosal folds
- 2. Mass near ulcer
- 3. Irregular filling defects in ulcer base
-
Gastrin producing tumor
Zollinger Ellison
-
Refractory PUD, abd pain, nausea, vomiting, diarrhea, steatorrhea.
ZE
-
Labs ZE
- fasting gastrin
- + secretin-stimulation test
- Specific gastrin sampling
- SPECT
- Angiography
-
+ secretin stimulation test
Administration of secretin caises higher than expected serum gastrin levels
(ZE)
-
M. Gastric cancer
Adenocarcinoma
-
Types of Gastric Cancer:
- Ulcerating: PUD-like
- Polypoid: large, intraluminal
- Superficial Spreading: mucosa & submucosa only, best prognosis
- Linitis plastica: all layers, elasticity, worst
-
Risk factors for Gastric Cancer:
- 1. H pylori
- 2. FH
- 3. Japanese
- 4.
- 5.
- 6. Vit C deficiency
- 7. preserved foods
- 8. >
-
Barium swallow showing thick leather bottle stomach
Linitis plastica
-
Ranson's Criteria on admission
- G: Glucose >200
- A: AST > 250
- L: LDH > 350
- A: Age > 55
- W: WBC >16,000
-
Ranson's criteria during initial 24 hrs
- C: Calcium <8
- H: Hct decrease >10%
- O: O2 <60mmHg
- B: BUN increase >5mg/dL
- B: Base deficit >4mEq/L
- S: Sequestration of fluid >6 L
-
Pancreatic pseudocyst
Fluid collection arising from pancreas consisting of enzyme rich fluids contained in a sac of inflammed membranous tissue.
-
Labs on pancreatic pseudocyst:
- WBC
- amylase
- Aspiration = amylase
- US/CT: pseudocyst
-
Drain a pseudocyst if:
- 1. Lasting > 6wks
- 2. Painful
- 3. Rapidky growing
(usually self resolves)
-
Grey turners sign
Bluish discoloration of flank
Seen in acute pancreatitis
-
Cullens sign
Periumbilical discoloration
Seen in acute pancreatitis
-
Sentinel Loop on AXR
Acute pancreatitis
Dilated loop of bowel near pancreas
-
Colon cutoff sign on AXR
Acute pancreatitis
R colon distended until near pancreas
-
Chain of lakes on AXR
Chronic pancreatitis
Calcifications
-
Exocrine pancreatic cancer
- Adenocarcinoma if pancreas
- MC-pancreatic head
-
Endocrine pancreatic cancer:
- ZE
- Insulinoma
- Glucagonoma
- VIPoma
-
Courvoisier's sign
Palpable, nontender gallbladder
Exocrine pancreatic cancer
-
Tumor markers for pancreatic exocrine cancer:
-
Treatment for pancreatic exocrine ca:
- Nonmet dz pancreatic head: whipple
- Lesion body/tail: subtotal pancreatectomy (if early)
- Advanced dz: stent pancreatic ducts, biliary ducts, duodenum
-
Migratory thrombophlebitis
Trousseaus's syndrome
Seen in pancreatic cancer
-
Hypoglycemia symptoms with fasting, hypoglycemia, improvement of symptoms with carb loading. Dx?
Insulinoma
(whipples triad)
-
Positive C peptide, increased fasting insulin, spontaneous hypoglycemia
Insulinoma
-
Localize insulinoma with what tests:
- CT
- US
- Indium labeled ocreotide scintigraphy
-
Treat insulinoma
- Surgery
- Diazoxide
- Ocreotide
-
Migratory necrolytic erythema
Glucagonoma
-
Hyperglycemia, increased glucagon
Glucagonoma
-
Treatment for glucagonoma
- Surgery if localized
- Ocreotide
- IFN alpha
- Chemo
- Embolization:
Poor prognosis
-
Watery diarrhea, nausea, vomiting, abd pain,VIP
VIPoma
-
Treatment for VIPoma
- Surgery if localized
- Steriods
- Chemo
- Ocrtreotide
- Embolization
-
Foul, green diarrhea in the winter
Rotavirus
-
Diarrhea associated with cruises
Norwalk virus
-
Thrombocytopenia, hemolytic anemia, acute renal failure
HUS from E. Coli
-
Treat b. Cereus gastroenteritis
-
Treating C. Jejuni gastroenteritis
- Erythromycin
- Hydration
- Self limited
-
C. Botulinum gastroenteritis
Botulism Antitoxin
-
C diff gastroenteritis tx
-
E coli gastroenteritis tx
- Hydration
- Self limited
- Antibotics may worsen
-
Staph aureus gastroenteritis tx:
-
Salmonella gastroenteritis treatment
If immunocompromised can give fluroquinolones but can prolong carrier state
-
Shigella gastroenteritis treatment
- Hydrate
- Self limited
- Cipro or bactrim if severe
-
Vibrio cholera gastroenteritis treatment
- Hydrate
- Pedialyte
- Tetra or doxycycline
-
Vibrio parahaemolyticus gastroenteritis treatment
-
Yersina gastroenteritis treatment
-
gastroenteritis with vomiting within several hrs of eating, diarrhea later
Staph aureus
-
gastroenteritis with. Flaccid paralysis
C. Botulinum
-
Copious watery diarrhea, signs of dehydration
Vibrrio cholerae
-
Puppy feces gastroenteritis
Yersina
-
gastroenteritis where u MuSt wash hands
C diff
-
Greasy foul smelling diarrhea, cysts trophozoites in stool
Giardia lamblia
-
-
Severe bloody diarrhea with cysts and trophozoites seen in still, liver abscess
Entamoeba histolytica
-
Entamoeba histolytica treatment
Metronidazole
-
Watery diarrhea in immunocompromised
- Cryptosporidium parvum
- Isospora
-
Cryptosporidium parvum treatment
- Control immune supression
- Nitazoxanide
-
Undercooked pork & diarrhea
- Trichinella spiralis
- Taenia solium
-
Fever myalgia, periorbital edema, eosinophilia, diarrhea, undercooked
Trichinella spiralis
-
Treat Trichinella spiralis
-
Mild diarrhea, CNS symptoms, undercooked , sz, death
Taenia solium
-
Taenia solium treatment
- Praziquantel: if GI sympt only
- Albendazole & corticosteriods: if neuro symptoms
-
MC neoplasm of salivary gland
Pleomorphic adenoma (benign)
-
Esophageal fibrosis due to
- Radiation
- Alkali ingestion
- Iron OD
-
MCC esophageal cancer worldwide, US?
- Worldwide: squamous cell ca
- : adenocarcinoma
-
Paraesophageal hernia more likely to
Become ischemic and incarcerated
-
Timing of pain gastric vs duodenal ulcer?
Gastric: soon after eating, food may worsen symptoms
Duodenal: 2-4hr after eating, food may help initially
-
H pylori in ~75% what ulcer type?
Duodenal Ulcer
-
Lab best for chronic pancreatitis
fecal elastase
-
Food poisoning from mayonnaise sitting out too long
Staph aureus
-
-
MCC traveler's diarrhea
E coli
-
Diarrhea & recent ingestion of water from a stream
- Giardia
- Entameba histolytica
-
Neurocysticercosis
T. Solium
-
Undercooked & food poisoning
E coli enterohemorrhagic
-
Diarrhea & pink eye
Adenovirus
-
What anatomical structures in GI tract can be seen by barium swallow
-
What anatomical structures in GI tract can be seen by gastric emptying study
- Stomach
- Pyloric sphincter
- Duodenum
-
What anatomical structures in GI tract can be seen by small bowel follow through (SBFT)
Stomach to terminal ileum
-
What anatomical structures in GI tract can be seen by barium enema:
Colon & appendix
-
Mallory Weiss vs Boerhaave
- MW: mucosal laceration
- B: esophageal perforation
Both have blood with emesis
-
Surgical connection stomach to skin of abd wall for feeding
Gastrostomy
-
Surgical connection of the ileum to the skin of the abdominal wall
Ileostomy
-
Surgical connection of the colon to the skin of the abdominal wall
Colostomy
-
Surgical incision into abdominal cavity
Laporotomy or Ceilotomy
-
Types of esophageal diverticulum
- Zenker: upper
- Traction: mid
- Epiphrenic: lower
-
+hepBsAg only
Vaccination
-
+ hepBsAb & + hepBcAb & -Hep BsAg
Recovered
-
EGD with biopsy shows gastric cancer. Next step?
CT abd & pelvis to stage
-
Next Step in management in pt with recurrent duodenal ulcers on at least 2 EGDs
Serum Gastrin
Rule out ZE
-
Antibodies in Celiac
- Antiendomysial
- Antigliadin
-
Treatment of tropical sprue
- Folic acid replacement
- Tetracycline
Removing dietary gluten has no effect!
-
Causes of lactose intolerance
- Deficiency of lactase
- Crohns disease
- Bacterial overgrowth
-
Type of diarrhea in lactose intolerance pts
Osmotic
-
Tests for lactose intolerance
- +lactose intolerance test
- +lactose breath hydrogen test
-
What is a + lactose intolerance test
Minimal increase in serum glucose following ingestion of lactose
-
Jejunal biopsy shows foamy macrophages on PAS stain and villous atrophy
Whipple dz
-
Treatment of whipple dz
TMP/SMX
Ceftriaxone for 1 yr!!
-
Symptoms of Whipple
- Wt loss
- Joint pain
- Abd pain
- Diarrhea
- Dementia
- Cough
- Steatorrhea
- Fever
- Vision
- Lymphadenopathy
- New murmur
- Severe wasting
-
Sudan stain detects
Steatorrhea
-
Normal D xylose, abnormal Sudan stain
Pancreatic insufficiency
-
Sudan stain & abnormal d xylose test
- Sprue
- Whipples
- Bacterial overgrowth
-
Acute diarrhea, High fever, bloody > 5 days
- Protozoan
- Bacterial
- Parasitic
-
Types of chronic diarrhea
- Secretory
- Osmotic
- Inflammatory
-
Normal osmotic gap 50
- Secretory:
- VIPoma
- Gastrinoma
- Medullary thyroid cancer
- Carcinoid tumor
- Resection of ileun
-
Secretory diarrhea mediated?
Hormone
-
High osmotic gap >50 or 125
Osmotic diarrhrea
-
Causes of osmotic diarrhea
- Malabs
- Panc insufficency
- Whipple
- Celiac
- Tropical sprue
- Lactase def
- Lacutlose
- Milk mag
- Alumjmum
- Sorbitol
-
Irregular bowel habits, frequency, form of stool, abd pain
IBS
-
Treat iBS
- High fiber
- SSRI or TCA
- Fiber bulking agents with hydration
- Loperamide or alosetron
-
HLA B27
- Psoriatic Arthritis
- A.S.
- Inflamm bowel dz
- Reiters
-
Skipped lesions, string sign
Crohns
-
-
-
Perianal fissures and fistulas in IBD
Crohns
-
Treating crohns
- 5ASA: mesalamine, sulfasalazine
- Azathioprine or mercaptopurine >methotrexate
- Anti TNF alpha: infliximab
- Steriods
- Sx resection if severe
- Immunosupressives
-
Complications of Crohn
- Abscess
- Fistula
- Fissure
- Toxic megacolon
- Malabsorption
-
Rectum & distal ileum in IBD
UC
-
Bloody diarrhea continous IBD
US
-
Extraintestinal manifestations more common in which IBD
Crohns
-
-
Colectomy is curative in which IBD
UC
-
Increased risk of colon cancer which iBD
UC
-
Top 3 causes of small bowel obstruction
- A: Adhesions
- B: Buldge-incarcerated hernia
- C: Colorectal Ca with mets
-
Hyperactive high pitched bowel sounds, nausea, vomiting, abd pain. Dx?
Small Bowel Obstruction
-
Distended loops of small bowel on AXR
Small bowel obstruction
-
Treating SBO
- NPO, IVF, electrolytes, foley
- NGT with LIWS
- Void pain meds!
- Laparotomy
-
What would lead you to do a laparotomy for SBO?
- No impeovement 12-24 hrs
- Conplete SBO
- Suspected, impending, or ongoing strangulation
-
MC benign small bowel tumor? Malignant?
Leiomyoma
Adenocarcinoma
-
MCC small vs large bowel obstruction?
Small: adhesions
Large: neoplasm
-
AXR ladder like dilated loops of bowel, air-fluid levels
SBO
-
AXR bowel distention proximal to obstruction
LBO
-
Air within bowel wall & bowel wall thickening
Ischemia!
Ischemic colitis
-
Vague abd pain, n/v, no BM, BS. Recent sx. Diagnosis?
Ileus
-
Treatment of Ileus
- Stop opiods
- NPO
- Colonic deconpression
- Erythromycin- motility
- Neostigmine
- Metoclopramide
-
Elderly female with. Vague, recurrent abd pain & vomiting.
Gallstone Ileus
Gallstone impacted in ileum through biliary-enteric fistula
-
MC location of volvulus
Cecum & sigmoid colon
-
AXR of volvulus? Barium enema?
- AXR: double bubble
- Barium enema: birds beak
-
Treatment for sigmoid volvulus
Sig/colonoscope decompress
CI if signs of gangreneperf
-
Recent Cuban immigrant for symptoms of malabsorption with megaloblastic anemia. Dz? Tx?
Tropical Sprue
- Folic H
- Tetracycline or sulf 3 mo's
-
Time frame for post-op ileus resolving in: SB, stomach, LB?
- SB: 1 day
- Stomach: 2-3 days
- LB: 3-5days
-
Signs for appendicitis
- Psoas
- Obturator
- Rovsing
- Tender @ McBurney's pt
-
Psoas sign
Pain on psoas on pasive hip extension
-
Obturator's sign
RLQ Pain with passive rotation internally of flexed hip
-
Rovsings sign
RLQ pain with LLQ palpation
-
Most sensitive test for appendicitis
- CT with contrast
- Rectal>oral>without>plain film
-
Classic characteristic of acute mesenteric ischemia?
Pain out of proportion to exam
-
Serum lab findings distinguishing Crohn's & UC
-
MCC of acute lower GIB
Diverticulosis
-
LLQ pain, n/v, melena, hematochezia, AXR: free air under diaphragm
Diverticulitis
-
Mild early cases of diverticulitis treated how?
- Bowel Rest
- PO antibiotics-pick one
- Fluoroquinolone & flagyl
- Bactrim & flagyl
- Augmentin
-
Inpatient tx of diverticulitis for:
- Elderly
- Immunocompromised
- Significant comorbities
- High fever
- Significant leukocytosis
- Unabke to tolerate po intake
-
If diverticulitis pt with guarding, rebound tenderness. Next step?
Emergency exploration!
(signs of peritonitis)
-
65 yr old female to ER with severe abd pain, WBC, abscess in region of sigmoid colon. Predisposing condition? Next step?
Diverticulosisdiverticulitis abscess
- CT/US guided percutaneous drainage
- IV antibiotics
-
Int vs Ext Hemorrhoids
I: Superior rectal vein, above pectinate line, painless
E: Inferior rectal vein, below pectinate line, painful
-
Painful bleeding tears in posterior wall of anus. Dx? Tx?
Anal fissure
- Stool softener
- Topical-nitro
- Topical-dilt, nefedi,bethanechol, botox
- Sphincterectomy
-
-
Rectal fistula/fistula in ano tx
Fistulotomy
Often found in crohn's
-
Pilonidal dz tx?
- I&D
- Surgical closure of sinus tracts
-
Carcinoid tumor arises from
- Neuroectoderm cells
- (APUD)
-
Carcinoid tumor MC located? Other locations?
Appendix!
- Ileum
- Rectum
- Stomach
- Lungs-bronchogenic ca
- SB
-
Carcinoid syndrome symptoms:
- B: Bronchospasm
- F: Flushing
- D: Diarrhea
- R: R sided murmurs (tri/pulm)
-
Localize carcinoid tumor by? Elevated levels of?
CT/indium labeled octreotide Scintigraphy
5 HIAA & Serotonin
-
Carcinoid Syndrome only seen if:
- Liver mets or
- Extragastrointestinal involvement
-
Treatment for Carcinoid Syndrome
- Somatostatin: ocretotide
- Cyproheptadine: diarrhea & anorexia
- Albuterol/theo: asthma sx
- Codeine/cholesytramine: diarrhea
-
If carcinoid symptoms refractory to ocreotide..
Add IFN alpha
-
Sx indications for Carcinoid tumor
- 2cm: resect
- 2cm: extensive resection
- Mets: IFN alpha, ocreotide, embolization
-
Colon cancers associated with mutation of APC gene
-
Hyperplastic polyp
Noncancerous!!
-
Risk factors for colon cancer? MC kind?
Adenocarcinona
- 1.FH
- 2.UC
- 3.Colonic polyps
- 4.Hereditary Polyposis synd.
- 5.fiberfat diet
- 6.Previous Colon Ca
- 7.
- 8.
- 9. DM
-
Colorectal cancer mets MC to?
-
Apple core lesion on barium enema
Colorectal Cancer
-
Duke's staging corresponding to lymph nice involvement in colorectal cancer
Stage III
-
Crigler Najjar syndrome deficiency of?
Glucuronsyltransferase
(conjugates bilirubin)
-
Treatment of crigler najjar
- Phototherapy
- Plasmapheresis
- Caphos & orlistat
- Liver transplant
-
Crigler Najjar symptoms
- Perisitent jaundice
- CNS symptoms
Bilirubin 5
-
Projectile emesis wks after birth, palpable olive shaped mass. Dx, test, tx.
Pyloric stenosis
- Barium swallow, US
- String sign, pyloric mm thickness
Pyloromyotomy
-
Electrolytes in pyloric stenosis
- Metabolic Alkalosis
- K Cl
-
Air in bowel wall, bowel distension, hematochezia, preterm baby, bilious vomiting with poor feeding and diarrhea
Necrotizing Enterocolitis
-
Treatment of Necrotizing Enterocolitis.
- TPN
- IV antibiotics
- NG suction
- Resection of affected bowel
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