Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/24

Click to flip

24 Cards in this Set

  • Front
  • Back
What is chronic pancreatitis?
Progressive, irreversible destruction of the pancreas by repeated bouts of mild pancreatitis
-alchohol or biliary tract disease
What is chronic calcifying pancreatitis?
Most common type resulting from alcoholism
What is obstructive pancreatitis?
Caused by?
Less common, nonlobular destruction
Caused by stenosis of sphincter of Oddi from cholithiasis or pancreatic carcinoma
Chronic pancreatitis sonographically
Mixed echo texture hyperechoic-fibrosis
hypoechoic-inflammation
Chronic pancreatitis
findings
Focal mass lesion-calcifications
Pancreatic duct dilation 5-10%
Pseudocyst formation
Adenocarcinoma
Definition
Pancreatic cancer
4th common death by cancer
Majority from ductal epithelium
Adenocarcinoma
Incidence
Rare before 40
2/3 over 60
2-3 month survival rate
1 year survival rate is 8%
Adenocarcinoma
Clinical symptoms HEAD
70% this location
Earlier than in tail
Assoc. with bile duct obstruction
Courvoisiers Sign (25%)
Adenocarcinoma
Clinical symptoms BODY & TAIL
15-20% body
5% tail
Weight loss, pain, jaundice, vomiting, diabetes, malabsorption
Adenocarcinoma
sonographically
Poorly defined mass
Uncinate process mass-more round appearance
Necrosis-cystic area w/in the mass
Adenocarcinoma
indirect signs
Dilation of pancreatic duct (over 2-3cm)-more in head
Mass may or may not be present
Adenocarcinoma
Double duct sign
Mass will extend inside and dilate the CBD and pancreatic duct
Cystic Neoplasms
percents
10-15% pancreatic cysts
1% pancreatic cancers
Cystic Neoplasms
Microcystic
Serous (fluid filled)
Benign-no surgery
Diffuse
Very small-2cm
Solid looking
Caclified scar in 20%
Cystic Neoplasms
Macrocystic
Mucous filled
Malignant-surgery recomm.
Over 2cm
Solid, clear, clear w/ debris
Islet Cell Tumors
Occur from and with....
Arise from multipotential stem cells, slow growing
Called APUD in ductal epithelium
Can be part of MEN syndrome
MEN syndrome
multiple tumors secrete different polypeptides
Islet Cell Tumors
Diffuse
Malignancy can't be dx microscopically
-Electron microscopy
-Immunoassay tech
Necrosis, hemorrhage, calcification (large malignant types)
B Cell Tumors
Insulinomas-most common
Usually benign
Ages 40-60
Hypoglycemic symptoms
Body or tail
Well encapsulated
70% solitary adenomas
G Cell Tumors
Gastrinomas
Malignant
Zollinger-ellison syndrome
Second most common
Ages 40-60
Diarrhea, peptic ulcer
85-90% in head
75% diffuse
Rare Islet Cell Tumors
Malignant-glucoagonmas, vipomas
Benign-somatostatinomas
Non-Islet Cell Tumors
Occur with....
(rare)
giant cell tumors
adenosquamous, mucinous, anaplastic, acinar cell carcinomas
connective tissue tumors
mets
lympomas
Non-Islet Cell Tumors
Definition and incidence
Solid and papillary tumors-young women, large well defined thich walled cystic lesions (from hemorrhage or necrosis)
Non-Islet Cell Tumors
Non-Hodginks Lympomas
Involve extra lymph node organs
Solitary or Diffuse