GI Flashcards
Tongue -
Sensory?
Taste?
motor?
Sensory - 5-9
Taste 7-9
Motor 12
Esophageal lymph node sections?
Cervical;
mediastinal
celiac/gastric
Types of mouth CA
Pleomorphic adenoma
Warthin
Mucoepidermodi
Pleomorphic adenoma - benign - “Chondromyxoid” - Odd borders, Recurrs after surgery.
Warthins - Bening, Cystic w/ GERMINAL CENTER. Papillary cystic.
Mucoepidermal - Malig - Mucous+ Squamous
Torus palatinus - Presentation? Tx?
hard midline immobile mass in superior palate.
No tx unless sx
Retropharyngeal abscess - Radiographic findings?
Concerns?
Widened prevertebral space -> concern mediastinal infection
Leuk/Erythroplakai?
What to do? Concners?
Biopsy both. NOT SCRATCHABLE off
E> L risk factor for SQUAMOUS CCA
Esophageal perf - dx?
Water soluble esophagram.
May be iatrogenic, after biopsy
Ludwig Angina -location, from where?
Submandible, sublingual - from molars.
Toxic ingestions - workup algorithm?
Serial CXR (for perth) Endoscope w/in 24 hours - Follow up sx w/ water sol esophagram
Variceal Hemorrhage - Tx algorithm?
IV fluids, octreotide, Ceftriaxone. BB is long term
Mallory weight etiology of tear?
Submucosal artery at distal esophagus, proximal stomach
Duodenal hematoma tx?
NG and TPN - no abx
Causes of acute gastritis?
UREMIA, Stress, NSAIDS, ETOH, Burn, Brain.
Chronic Gastric - location and etiology. Risk factors?
TA
TB
A - Fundus, Body, Autoimmune
B - Antrum - Bacterial. INC risk of MALToma (tx h pylri) ADENOCA.
Menieres - presentation?
Concerns?
Hypertrophy, protein loss. INC mucous, DEC parietal cells.
Premalignant
Peptic Ulcers - Locations? Types? Locations
90% duodenoal (ok), Gastric are the concerns
intestinal - Lesser curve - H pylori - Chronic Type B
Diffuse - non H pylori. SIgnet. Linnus plastic. Krukenberg
VIPoma - locations?
Vs
Carcinoid?
VIPoma - pancreas
Carcinoind - Ileum/small bowl
Dumping syndrome? When? Presentations?
Tx?
Autonomic signs, flushing, fainting,
Occurs post gastrectomy>
Change Diet first.
Refractory -> Octreotide -> surgery
Sites of Fe, Folate, B12 abs?
Fe - duodenum
Folate - Jej
B12 - ileum
Acute mesnteric Ischemia - lab findings?
INC lipase, INC lactate, METABOLIC ACIDOSIS.
AKA can mimic pancreatits . Look for athero risk factors
Chronic mesenteric ischemia presentation?
Worse wi th food. 50% have abd bruit
Chronic pancreatitis - presentation?
Pain with no relief from antacids . Intermittent pain.
Dx - CT scan - may show calcifications
Trousseau sign - presentation, etiology, concnerns
Mig thrombophlebitis, Hypercoag state.
Pancreatic CA.
CT Abd.
Pancreatic CA screening biomarker?
CA 19-9
Crohns vs UC
Crohns
-Th1, granulomas, creeping fat, kidney stones.
tx - steroids, MTX, infliximab
UC
- No granulomas (Th2) - Lead pipe sign, PSC, P ANCA
- Tx 5ASA, 6MP, Inflix, Colectomy
Tx IBD related toxic megacolon?
Abx + STEROIDS
P biliary Cirrhosis
VS
P Sclerosing CHolangitis
PBC
- Crohns, granulomas, female night, pruritis.
- INTRA hepatic. Vanishing duct, ductopenia
- Anti-Mitochondrial
- Crest, sjogrens, Celiac, RA
- Tx ursodeoxycholic
PSC
- Fibrosis, onion skinning, beading.
- p ANCA
- Intra and extra hepatic
- ~Hyper IgM, UC, CHOLANGIOCA
Dx and histo
Lactose
vs
Celiac – risk?
Lactose - normal villi
- H breath test, INC stool reducing agents, DEC stool pH. INC osmotic gap
Celiac - blunted villi.
Ab - TTG, gliadin, endomysial. Dq28, TH mediated.
- Riks - T CELL LYMPHOMA
Tropical sprue - similar to ? tx?
Celiac – responds to abx though
Abeta - histo
presentation?
Abeta - fat in enterocytes. DEC APoB
Night blindness, steatorrhea, ATAXIA
Pancreatic insufficiency - dx?
D -xylose test ( doesnt need enzymes to be abs)
How to test for ZE, gastrinoma?
Secretin test. Usualyl it shoudl DEC gastring.
But in ZE it INCREASE gastrin.
Small bowel bacterial overgrowth - presentation?
dx?
Malabs, steatorrhea, bloating, flatulence, weight loss
Anatomic dysmotility.
Jejunal aspirate shows >10^5 microbes.
Schilling test - pathways and findings
B12 abs
1 - IM + PO = if in urine - dietary. If not in urine, was not abs
2 - PO + IF
-in urine = pernicious anemia
not in urine - ileal disease.
Who to suspect pernicios anemia in?
Northern European w/ autoimmune conditions (vitiligo, thyroid etc)
Polyps to be concerned w? 3 factors
Villous, Sessile (no stalk) , Greater than 2.5cm
FAP - inheritance, chr, gene problem
special subtypes
FAP - AD, APC, Chr5,
Gardeners - FAP + osseous
Turcot - FAP + Malig CNS
HNPCC lynch - genetic problem - concerns?
DNA mismatch - R colon -
Extrainteestinal CA! (endometriod)
Peutz Jegher - inheritance - presentation - cocners.
AD - Nonmalig hamartomas + hyperpig.
INC CRC risk !! (as a whole, not from hamartomas)
Watershed sites in colon?
Splenic flexure
Rectosigmoid
Liver
microvesicular vs macro?
centrilobular?
Microvescular - reyes
Macro - ETOH, Nash, N! Mallory bodies
Centrilobular necrosis - halothane
Damage in hepatitis is from?
Cytotoxic T lymphocytes
In clearance phase, how to monitor hepatitis?
e Ag and ALTs every 3-6 mo until cleared
Hep B tx - when? with what?
DNA>20k, ALT x2
Short term - interferon (but really, Tenofovir!)
chronic - Tenofovir, entecavir
Hep C - tx? requirements?
Compensated (fibrosis is okay)
Older than 18, INR less than 1.5, compliant. No active drug use or MDD.
peginterferon + ribavarin
geno1 add telaprevir, boceprevir
iF UNCOMPLICATED (inr > 1.5, DEC serum albumin -> liver tx)
Hep C associated with what 4+?
Porphyria, cryoglobulinemia, Memb, Memprolieratve T1
Etiology, tx, concerns.
Cavernous hemangioma -
Hepatic adenoma
Angiosarcoma?
Cavernous hemagnioma - common, benign, DO NOT BIOPSY
Hepatic adenoam - OCP/steroids
Angiosarcoma - Arsenic, vinycl Cl, PECAM 31.
Gilbert
Crig Najr
Dubin HJohns
Rotor
Gilbert, DEC UGT - largely asx
Crig Najr - T1 - NO UGT - plasmapx, photo
Crig Najr 2 - Not as bad - Tx phenobarbital
Dubin Johnson - DEC ability to excrete - INC Cbili, BLack liver
Rotor - INC Cbili, no black liver
Cirrhosis - maintenance workup?
US and AFp every 6 mo
EGD every year
Hepatorenal - etiology, presentation?
ESLD -> renal failure due to renal hyoperfusion.
Urine Na is less than 10 (good, prerenal picture)
Not corrected with IV fluids.
Acute liver failure - presentation? causes?
best prognostic factor?
Encephalopathy, INR>1.5 WITHOUT PREEXISTING CIRRHOSIS
Hept, ETOH, tylenol, ischemic, wilsons
May see a dec in Transaminase (dec liver function)
PT is best prognostic factor
WIlsons lab findings?
DEC ceruloplasmin
INC Cu urine excretion (only way to get it out)
TPN - most feared complication. Other concerns.
catheter tip infection. Diarrhea is rare. Avoid Refeeding syndrome(HypoK,Mg, P ) by slow infusion and checking electrolytes.
What should be given to someone s/p gastric bypass surgery?
ursodeoxycholic acid
Is Peritoneal irritation somatic or visceral
it is somatic – it is sharp
SAAG - what can it differentiate between
Serum – ascites.
If >1.1 suggests portal HTN (liver or not) aka INC hydrostatic pressure
If less than 1.1 suggests TB, Malignancy, Pancreatitis, Nephrotic disease
SBP – tx alogithm
– broad abx (cef) – DO NOT DO LVP even if they have a lto of fluid onboard!
Pancreatic CA – symptomatic bili and itching - what to do
Tx – palliative – endoscopic Common bile duct stent
Esophageal spasm tx?
CCB
Dyspshagia in HIV CD4
Empirically start fluconazole over endoscopy or biopsy.
HNPCC - when to screen?
25 w.o colo every 1-2 years.
PPx in variceal bleeding and ascites?
W variceal bleeding and ascites - need SBP ppx - TMP SMP.
After one episdoe fSBP - need lifelong ppx.
Autoimmune hepatitis ab?
Anti smooth muscle antibody.
If blood diarrhea – EHEC suspected, tx?
DO NO T GIVE ABX – INC RISK OF HUS!
Acute cholangitis t x
supportive care and broad abx. If they do not respond, biliary drainage w/ ERCp
gastric ulcer - what to do?
Biopsy must be performed on ALL gastric ulcers.
Staging of Gatsric Adeno after biopsy?
ct abd pelvis
Pathophys – Esophageal varices vs malloryWeiss
Varices- submucosal veins. Mallory Weiss – Submucosal ARTERIES
Pleural effusion after thoracentesis in cirrhotic/ascetic pt – tx?
TIPS. Would reappear with chest tube and paracentesis is inadequate.
Gallstones, opaque or radiolucent
Cholesterol and mixed stones are RADIOLUCENT – not visible on abdominal xray. Dotn confuse with kidney stones! This is why US and CT are used instead.
Appendicitis
– Preop-Abx, NPO, lap appy (if classic, doesn’t require imaging as it may lead to perf; if nontypical, then CT or US). No post op Abx unless rupture
INC Alk phosph
next step/? RUQ – assess intrahepatic or extrahepatic bili obstruction
Achalasia vs Esophageal stricture
Ach: both soldis and liq. Stricture: Solid dysphagia. gerd complication, may actually improve gerd .
Diarrhea vs vomiting metabolic findings
Diarrhea actually losses Bicarb leading to nongap ACIDOSIS. Vomiting alkalosis (saline responsive)
Free air w/ history tx algorithim?
Urgent surgery consult. Emergent x lap. After CXR showing free air , no other imaging needed.
Celiac disease can cause what heme issue with neg stool occult ?
Iron deficiency anemia due to malabsorption!
When to use pancreatic protease inhibitors in pancreatitis?
Don’t use.
Which pneumococcal immune is 40 y.o with liver failure?
PCV 23 – 13 is only for ICH/HIV, splenectomy, SS
Where does D xylose get absorbed?
Proximal small intestine (NOT TERMINAL ILEUM)
Can you treat Chronic Hep C? If considered for tx usu undergo
Yes, tx chronic hep c. undergo LIVER BIOPSY, best clinical predictor and assesses likelihood of response to tx. Those who have more cirrhosis/fibrosis usually respond better to tx.
Manometry, achalasia vs systemic sclerosis
Achalasia INC tone, failure to relax. SS fibrosis and atrophy leads to hypomotility and incompetence of LES>
Cholangitis workup
– medical emergency (Abx etc) with ERCP decompression. Not surgery.
Acute diverticulutlits imaging?
DO NOT COLONOSCOPY, inc risk of perf. CT
Pancreatic pseudocyst management
if painless DO NOT DRAIN, painful and greater than 6cm at 6wk, endoscopic drainiage.
Pre-appy abx
Cipro and metronidazole ; amp/sulbactam; levofloxacin clinda. Cefotetan.
Mesenteric ischemia w/ pain out of proportion to exam algorithm
surgery (embolectomy) or angio (thrombolyisi/vasodilators)
Acute ascending cholangitis algorithm –
– IV abx ,emergent decompression of common duct w/ ERCP. Eventual cholecystectomy.