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78 Cards in this Set

  • Front
  • Back
What type of gland is the pancreas?
Endocrine AND Exocrine
Endocrine portion of the pancreas secretion
hormones for regulation of carbohydrate metabolism
Exocrine secretions of the pancreas
enzymes aiding in digestion
Why is it difficult to perform a physical examination of the pancreas?
It is deeply located, under many organs
Portion of pancreatic fluid that acts to neutralize HCL within the duodenum
Bicarbonate
Amylase
exocrine secretions that breaks down carbohydrates
Lipase
exocrine secretions that breaks down fat
Proteolytic enzyme precursors
exocrine secretions that are activated in the duodenum and break down proteins
Insulin
endocrine secretion that lowers blood glucose by promoting its uptake in to cells
Glucagon
endocrine secretion that raises blood glucose by promoting breakdown of liver stores
How does the pancreas regulate auto-digestion by proteolytic enzymes that it creates?
- They are stored as inactive precursors (zymogens)
- They are stored in membrane bound "sacks"
- They are only activated after being secreted into the duodenum
- There are inhibitors present to prevent premature activation
Main causes (2) of pancreatitis
alcohol, and duct obstruction
two forms of pancreatitis
acute, chronic
how many new cases of acute pancreatitis in USA each year?
5,000
Mortality rate of acute pancreatitis
10%
Acute pancreatitis
inflammation of the pancreas associated with edema, autodigestion, necrosis, and hemorrhage
Biliary pancreatitis
inflammation of pancreas after a stone becomes lodged int he sphincter of iddi, ampulla of vater
risk factor of severe pancreatitis
obesity, due to increased deposits of fats around the pancreas
Symptoms of acute pancreatitis
- abdominal pain that radiates to the back
- nausea and vomiting
serum tests performed to detect acute pancreatitis
- serum amylase
- serum lipase
- WBC levels
- Glucose levels (hyperglycemia)
- Calcium levels (hypocalcemia)
What will acute pancreatitis look like with U/S?
edema, dilated ducts, calcification, pseudocysts
Differential diagnosis for acute pancreatitis
perforated viscus, cholecystitis, biliary colic, intestinal obstruction, mesenteric occlusion, renal colic, myocardial infarction, aortic aneurysm, and connective tissue disorders
(T/F), 80-90% of acute pancreatitis cases are self limited and subside within 3-7 days after treatment
True
Acute pancreatitis treatment
supportive: IV fluids, pain relief, withholding food intake to reduce gastric contents entering duodenum (NPO), antibiotics to prevent secondary infection
Complications of acute pancreatitis
- Phlegmon (mucous mass)
- Pseudocyst (necrotic debris)
- Abscess
- Pancreatic ascites
Complications of pseudocysts from acute pancreatitis
Infection, bleeding, and rupture in to peritoneum
Chronic pancreatitis
progressive destruction of pancreatic acini from inflammation, fibrosis, and dilation of ducts
Conditions associated with chronic pancreatitis
Alcohol abuse, trauma, drugs
Most common cause of chronic pancreatitis in USA (adult/children)
Alcoholism in adults, CF in children
Signs of chronic pancreatitis
- Severe abdominal pain that lasts years before physically manifestation occurs
- "Fatty Poop"
- Pain is primarily in back, or radiates there
- Weight loss
- Obstructive jaundice
- Diabetes (after gland destruction)
- GI bleeding
Why weight loss with chronic pancreatitis?
Anorexia, and poor fat absorption
Differential diagnoses for chronic pancreatitis
- Abdominal malignancies (colon, stomach, pancreas cancer)
- Peptic ulcer disease
- Mesenteric ischemic disease
(T/F) chronic pancreatitis causes elevated serum levels of amylase and lipase
False, these levels are not effected by chronic pancreatitis unless it is associated with an acute attack
What will imaging show in chronic pancreatitis
Dilated ducts, and calcifications
Treatment of chronic pancreatitis
prevent further damage of pancreas, pain relief, replace loss of function, drainage of pseudocysts, partial resection of damaged duct
Complications of chronic pancreatitis
From destruction of gland:
- Pseudocysts
- Pancreatic ascites
- CBD obstruction
- Diabetes
- Peptic ulcer
- Insufficient exocrine function
- Splenic vein thrombosis
Why must all tumors of the pancreas be removed?
For differentiation from adenocarcinomas
Percent of pancreatic neoplasms that are cystic tumors
5%
Where in pancreas are cystic tumors located?
body or tail
Prognosis for pancreatic carcinoma
Very bad, 98% fatal, 5th most common cause of cancer related death
Primary suspect for pancreatic carcinoma
70 year olds, slightly more male than female, Africans more predisposed
Risk factors for pancreatic carcinoma
- Smoking!
- Industrial work
- Autoimmune pancreatitis
- Age >50
- Family Hx
Will an alcoholic be at higher risk for contraction of pancreatic carcinoma?
No, not related unless smoking is also involved.
What is a worrisome sign that may lead to diagnosis of pancreatic carcinoma?
Painless jaundice
What causes painless jaundice?
Cancer in pancreatic head that pushes on, and obstructs, the CBD
Signs related to pancreatic carcinoma
- Painless jaundice
- Very distended GB, can be palpated!!
- Weight loss (unintentional, anorexia due to mass effect)
- Pain in abdomen, radiating to back
Percent of patients with pancreatic carcinoma that present with obstructive jaundice
80%
What does significant pain suggest in relation to pancreatic carcinoma?
invasion of nerves supplying abdominal organs
Most common portion of pancreas effected by pancreatic carcinoma
Head, then body, then tail
What type of carcinoma are 90% of pancreatic carcinoma?
adenocarcinoma, from ducts or glands
How does one quantify the level of pain?
If pain is disrupting normal sleep patterns it is SEVERE!
When a very enlarged GB is causing abdominal distention WITHOUT pain, what is it called?
Courvoisier sign
Whipple procedure
Removal of some, or all, of the pancreas and duodenum. Very hard and long procedure with high mortality rate. "pancreatoduodenectomy"
Where is the most common spot for pancreatic carcinoma to met. to?
Liver
What is the ONLY way to diagnose pancreatic carcinoma?
Tissue biopsy
Why is it difficult to detect pancreatic carcinoma early?
- Nonspecific symptoms
- No way to screen
- Blood tests not sensitive enough
Order of imaging modalities when it comes to pancreatic carcinoma
Ultrasound first, then CT, ERCP
Which modality detects pancreatic cancer 80% of the time?
CT
What is the least invasive way to diagnose pancreatic carcinoma?
FNA with u/s or CT guidance
Percent of pancreatic carcinomas located in each portion of the pancreas
- Head: 70%
- Body: 20%
- Tail: 10%
Which area of the pancreas will provide the best prognosis (after resection) when effected with pancreatic carcinoma?
The head
Percent of pancreatic carcinomas arising from endocrine cells
5-10%
5-year survival rate for patients that undergo surgical resection of the body/tail of pancreas
10%
How are symptoms of pancreatic cancer treated through surgery?
- Surgical decompression of biliary tract to stop jaundice
- Destruction of celiac plexus (nerves) to stop pain
Does the risk of cancer recurrence change based on type of operative procedure? (removal of pancreas vs. pancreas and duodenum0
No
What is the survival length of a patient who has un-resectable pancreatic carcinoma?
6 months
Most common endocrine tumor of the pancreas
Insulinoma
2nd most common endocrine tumor of the pancreas
Gastrinoma
Clusters of endocrine cells that secrete hormonal products
Islets of Langerhans
Classes of islets and their respective secretions
A cells: glucagon to raise glucose levels
B cells: (beta) insulin, lower glucose levels
D cells: somatostatin, slows body functions
PP cells: pancreatic polypeptide
Symptom related to multiple gastrinomas
Ellison syndrome
Complication from gastrinomas
peptic ulcers due to increased HCL
Test for gastrinoma
serum gastrin
Hallmark of insulinoma
symptomatic hypoglycemia (low glucose) from hyper secretion of insulin
Test for insulinoma
taking unsulin levels during fasting hypoglycemia (they will stay elevated when its not necessary)
Symptoms of insulinoma
- Headache
- Slurred speech
- Psych. alterations
- Confusion
- Visual disturbance

can also cause coma or death.....
Secondary effects of hypoglycemia from insulinoma
- Tremors
- Sweating
- Pallor
- Palpitations
Therapy for insulinoma
Surgical removal, which is then monitored by blood glucose levels