pancreatic Flashcards

1
Q

basolateral cells of panc have R for

A

CCK

NT- GRP, Vip, ACH

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2
Q

ductules

A

large volume secretions that bring pH close to normal in order to

  • inactivate pepsin
  • increase solubility of fatty and bile acids
  • block mucosal damage
  • optimize pancraetic ad BB enzyeme fx
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3
Q

regulators of acinus

A

endo: CCK, secretin
neuroendocrine: Ach, Grp, vip, subs p

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4
Q

regulators of duct

A

scretin

ach

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5
Q

pathway of food

A

food–>i cells–> cck–>acinus–>digestive enzymes

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6
Q

duodenal acidity pathway

A

–>S cells–>secretin–>duct–>HCO3- and water

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7
Q

CCK mech

A

no receptors in acinus
stimulate vagal afferents–> basal ganglia–>vagal efferents–>pancreatic paraS gang–>ach, vip, grp–>acinar cells–>ezyme–>digest food

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8
Q

secretin mceh

A

h+ secretion–>direct and indirect effects on acinar cells–>HCO3- ad h20

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9
Q

enterokiase

A

on duo enterocytes
claeves trypsinogen–>trypsin
acidic pH inhibits trypsin

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10
Q

lack of inh genes

A

pancreatitis

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11
Q

grey turnre sign

A

ecchymoisis on 1/both flanks

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12
Q

cullen sign

A

ecchymoisis periumilical region

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13
Q

serum ca in panc

A

increase lipase–>desroy fat–>sequeser ca

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14
Q

atlanta criteria

A

abdominal distention consistent w/ acute pancreatitis

increase amylase/lipase >3x normal

+ changes on CT

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15
Q

gallstones do not lead o

A

chronic pancreatitis

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16
Q

hereditary ways to get pancreatitis

A

trypsinogen mutations that make it more resistant to deactivation

def of antitrypsin

cystic fibrosis

familial hypertriglyc

17
Q

early complications of pancreatitis

A

massive volume losses secondary to third spacing

SiRS

metabolic abnormalities

peripancreatic necrosis

18
Q

late complications of pancreatiti

A

pseudocysts & abscesses

19
Q

mortality <1 week

A

secondary to sirs or multiorgan failure

20
Q

mortality >1 week

A

pancreatic sepsis or multiorgan failure

21
Q

tx mild pancreatitis

A

iv hydration
rest
remove offending agent

22
Q

tx severe

A

supportive

ERCP for stones, but risk factor fo acute panc

23
Q

typse of mild pancreatitis

A

interstitial or edematous pancreatitis

24
Q

types of severe pancreatitis

A

necrotizing or hemorrhagic pancreatitis

25
Q

pathological hallmark of severe pancreatitis

A

fatty necrosis

26
Q

saponification

A

liberated FAs precipitate calcium salts in cytoplasm in svere pancreatitis

27
Q

damage order of pancreatitis

A

acinar tissue> ducts> islets

28
Q

pseudocyst

A

walled-off collcetion of fluid or liquified tissue within or adjacent to the pancreas in acute pancreatitis

may include adjacent organs
no epithe. lining

29
Q

abscess

A

necrotic tissue or a pseudocyst that becomes infected w/ bacteria or fungi from intestine or blood–>liquefied necrotic tissue

30
Q

etio of chronic pancreatitis

A
alcohol
idiopathic
hereditary
CF
autoimmune
ductal obstruction
tropical
31
Q

hereditary panc pt mutation

A

cationic trypsinogen gene (PRSS1)– removes a fail safe mech for trypsin inact

32
Q

autoimmune panc on CT

A

enlarged panc

33
Q

type 1 Aip

A

igg4

34
Q

pathonmonic for cp

A

calcified debris in ducts

35
Q

90% of pancreatic cancer

A

ductal adenocarcinoma

36
Q

RF for panc carcinoma

A

smoking
chronic panc
DM

37
Q

3 main types of benign tumors

A

serous cystadenoma
mucinous cysadenoma
intraductal papillary-mucinous adenoma

38
Q

neoplasms w/ moderate dysplasia

A

intraductal papillary-mucinous neoplasm

mucinous cystic neoplasm