Pancreas Flashcards

1
Q

the pancreas is what type or organ within where?

A

Retroperitoneal within anterior para renal space

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2
Q

Where is the pancreas located?

A

Posterior to the lesser sac

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3
Q

What is the AP dimension for the pancreas head?

A

3.5 cm or less

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4
Q

What is the AP dimension for the pancreas neck?

A

1-2.5 cm or less

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5
Q

What is the AP dimension for the pancreas body?

A

2.5 cm or less

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6
Q

What is the AP dimension for the pancreas tail?

A

2-2.5 cm or less

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7
Q

The uncinate process is part of what area of the pancreas?

A

Head

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8
Q

What do acini cells do?

A

Secrete digestive enzymes

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9
Q

What part of the pancreas is located medial to the C-loop of duodenum, anterior to the IVC, and inferior to the caudate liver lobe?

A

Head of Pancreas

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10
Q

What part of the pancreas is directly anterior to SMV or portalsplenic confluence?

A

Pancreas neck

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11
Q

What part of the pancreas is located posterior to portions of the stomach, duodenum, and left liver lobe?

A

Body of pancreas

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12
Q

What part of the pancreas is anterior and medial to left kidney, posterior to stomach, medial to spleen?

A

Pancreas tail

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13
Q

The main pancreatic duct is also known as?

A

Duct of wirsung

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14
Q

What two arteries supply the pancreas?

A

Splenic & pancreaticoduodenal

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15
Q

What are the enzymes of exocrine?

A

Acinar, lipase, trypsinogen and chymotrypsinogen, and amylase

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16
Q

Which enzyme secretes digestive enzymes?

A

Acinar

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17
Q

Which enzyme breaks down fat?

A

Lipase

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18
Q

Which enzymes are preproteolytic enzymes that break down proteins to amino acids?

A

Trypsinogen and Chymotrypsinogen

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19
Q

Which enzyme breaks down complex carbohydrates?

A

Amylase

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20
Q

How much fluid per day can the pancreas secrete?

A

1500 mL

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21
Q

What is exocrine?

A

Secretes enzymes into a duct

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22
Q

What is endocrine?

A

Hormones secrete into blood/tissues

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23
Q

What do the cells of the islets of Langerhans do?

A

Alpha cells secrete glucagon, Beta cells secrete insulin, Delta cells secrete somatostatin

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24
Q

In amylase, elevated levels are associated with?

A

Pancreatic diseases, biliary, bowel obstruction, and peptic ulcer

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25
In amylase, decreased levels are associated with?
Permanent damage of the pancreas, hepatitis, and liver cirrhosis
26
Which lab value indicates acute pancreatitis when 2x the normal level?
Amylase
27
Which lab value has elevated lipase that may indicate acute pancreatitis or pancreatic carcinoma?
Lipase
28
Which lab value has total serum bilirubin values increased when pancreatic head obstructs the CBD?
Bilirubin and liver
29
Which lab value may indicate glucose metabolic disorder?
Elevated or decreased glucose
30
What is an annular pancreas?
Congenital anomaly
31
What are possible indications for an ultrasound of the pancreas?
Epigastric pain, Abdominal pain, Abdominal distension, Jaundice
32
What does patient prep involve for a pancreas ultrasound exam?
NPO 8-12 HOURS PRIOR TO EXAM
33
What are the most common causes of acute pancreatitis?
EDEMATOUS FORM (MOST COMMON), NECROTIZING FORM
34
What is a pancreatic pseudocyst?
A collection of fluid that resulted from an inflammatory process
35
What is a phlegmon?
An inflammatory process that spreads along fascial pathways
36
Why is a case of hemorrhagic pancreatitis so dangerous?
Fast of acute pancreatitis with rupture of pancreatic vessels resulting in hemorrhage
37
What disorder is an inherited disorder of the exocrine glands causing viscous secretion and dysfunction of the pancreas exocrine function?
Cystic fibrosis
38
This is the ultrasound appearance of : Pancreas appears hyperechoic, and decreased size of pancreas
Cystic fibrosis
39
What is a pancreatic cyst caused by?
Ductal obstruction
40
This is the ultrasound appearance of : Homogeneous, mid gray to medium gray echoes, equal to or more echogenic than liver, becomes more echogenic with age, and has a smooth contour
Normal pancreas
41
What should you do if you cannot visualize the pancreas?
Identify where you know the anatomy is and write down why you couldn’t scan it
42
What can the posterior wall of the stomach appear to be?
Duct of wirsung
43
How much water should a patient drink through a straw?
32 ml – 300 ml
44
Pancreatic cysts may be associated with cysts in which other organs?
Kidney & liver
45
These are the complications of : Pseudocyst formation, phlegmon, abscess, hemorrhage, and duodenal obstruction
Acute pancreatitis
46
What is the most common cause of acute pancreatitis?
Biliary tract disease & excessive alcohol intake
47
These are the signs and symptoms of : Constant epigastric and back pain, weight loss, steatorrhea, and diabetes mellitus
Chronic pancreatitis
48
These are the signs and symptoms of : Severe epigastric pain which radiates to back, nausea and vomiting, malaise, abdominal distention, fever, jaundice, and history of gallstones and alcohol abuse
Acute pancreatitis
49
These are the signs and symptoms of: Weight loss, chronic abdominal pain, back pain, painless jaundice, palpable abdominal mass, anorexia, nausea, vomiting, and malaise
Pancreatic carcinoma
50
This is the ultrasound appearance of: Most common in pancreatic head, hypoechoic mass, poorly defined, usually greater than 2cm, Courvoisier sign, liver mets, and ascites
Pancreatic carcinoma
51
What are the risk factors for pancreatic carcinoma?
More than 90% of all malignant pancreatic tumors, Blacks more than whites, Males more than females, Diet high in fat; low in fruits & vegetables, Increase with smoking, Chronic pancreatitis, Age; more common after 60 years, 4th most common cause of cancer-related mortality after lung, breast, and colon cancers
52
What is Courvoisier sign and what is it associated with?
Where a patient presents with painless jaundice and a palpable, enlarged gallbladder, typically associated with a malignant obstruction of the bile duct, most commonly caused by pancreatic cancer.
53
Describe the different types of acini cell tumors.
Adenocarcinoma – pancreatic carcinoma, Serous cystadenoma, Mucinous cystadenoma/cystadenocarcinoma
54
What are the different types of islet cell tumors?
Insulinoma, gastrinoma, and glucagonoma
55
Which islet cell tumor is most common?
Insulinoma (B cell)
56
Which islet cell is the 2nd most common?
Gastrinoma (G cell)
57
Which islet cell is usually benign (90-95%)?
Insulinoma
58
Which islet cell is rare?
Glucagonoma
59
Which islet cell produces Zollinger-Ellison syndrome?
Gastrinoma
60
What is a benign tumor, but can become malignant, common in women, and commonly found on pancreas body/tail?
Mucinous cystadenoma
61
What is a benign tumor, common in women, and commonly found on pancreas head?
Serous cystadenoma
62
What are the two functions of the pancreas?
Endocrine and exocrine
63
Which lab values would be important for pancreatitis?
Serum amylase and lipase levels