Podcast
Questions and Answers
What is the recommended initial fluid resuscitation bolus for a patient with hypovolemia due to pancreatitis?
What is the recommended initial fluid resuscitation bolus for a patient with hypovolemia due to pancreatitis?
- 5 ml/kg
- 10 ml/kg (correct)
- 15 ml/kg
- 20 ml/kg
Which class of antibiotics is typically used for prophylactic treatment in pancreatitis?
Which class of antibiotics is typically used for prophylactic treatment in pancreatitis?
- Carbapenems (correct)
- Penicillins
- Macrolides
- Cephalosporins
In the nutritional management of pancreatitis, what is the recommended initial range for daily energy intake?
In the nutritional management of pancreatitis, what is the recommended initial range for daily energy intake?
- 5-10 kcal/kg/day
- 15-35 kcal/kg/day (correct)
- 10-15 kcal/kg/day
- 35-50 kcal/kg/day
Which of these is NOT a typical component of the morphological triad seen in chronic pancreatitis?
Which of these is NOT a typical component of the morphological triad seen in chronic pancreatitis?
What is the most frequent genetic mutation found in patients with ductal adenocarcinoma of the pancreas?
What is the most frequent genetic mutation found in patients with ductal adenocarcinoma of the pancreas?
The 'double duct sign,' often indicative of a pancreatic head mass, refers to the dilation of which two structures?
The 'double duct sign,' often indicative of a pancreatic head mass, refers to the dilation of which two structures?
Which clinical symptom is commonly NOT associated with pancreatic cancer?
Which clinical symptom is commonly NOT associated with pancreatic cancer?
Regarding chronic pancreatitis, which of the following statements is TRUE?
Regarding chronic pancreatitis, which of the following statements is TRUE?
Which of the following best describes the primary role of centroacinar cells in the pancreas?
Which of the following best describes the primary role of centroacinar cells in the pancreas?
According to the provided text, what is the primary mechanism that stimulates exocrine secretion from the pancreas?
According to the provided text, what is the primary mechanism that stimulates exocrine secretion from the pancreas?
Which of the following is a known inhibitor of pancreatic exocrine secretion?
Which of the following is a known inhibitor of pancreatic exocrine secretion?
Which of the following is NOT part of the diagnostic criteria for acute pancreatitis according to the Atlanta criteria?
Which of the following is NOT part of the diagnostic criteria for acute pancreatitis according to the Atlanta criteria?
In biliary pancreatitis, what is the role of bile acids in the pathogenesis of the disease?
In biliary pancreatitis, what is the role of bile acids in the pathogenesis of the disease?
What is the main consequence of alcohol metabolism in acinar cells that can contribute to pancreatitis?
What is the main consequence of alcohol metabolism in acinar cells that can contribute to pancreatitis?
What is the result of excessive stimulation of the exocrine pancreas from a single meal?
What is the result of excessive stimulation of the exocrine pancreas from a single meal?
How does nicotine exposure, at low concentrations, affect the pancreas?
How does nicotine exposure, at low concentrations, affect the pancreas?
Which of the following is associated with the activation of elastase in the evolution of acute pancreatitis?
Which of the following is associated with the activation of elastase in the evolution of acute pancreatitis?
What symptom is associated with the presence of Cullen's sign in a patient?
What symptom is associated with the presence of Cullen's sign in a patient?
According to the provided text, what is the primary mechanism by which fatty acid ethyl esters contribute to acinar cell damage?
According to the provided text, what is the primary mechanism by which fatty acid ethyl esters contribute to acinar cell damage?
Based on the text, what is the minimum daily alcohol consumption, for males, over 5 years, considered a risk factor for chronic pancreatitis?
Based on the text, what is the minimum daily alcohol consumption, for males, over 5 years, considered a risk factor for chronic pancreatitis?
What protein intake during a meal, as described in the text, might lead to hyperstimulation of the exocrine pancreas?
What protein intake during a meal, as described in the text, might lead to hyperstimulation of the exocrine pancreas?
What is the recommended range for fat composition in a ketogenic dietary regimen?
What is the recommended range for fat composition in a ketogenic dietary regimen?
What condition is identified in the text as a possible outcome of obesity, and that leads to ER exhaustion?
What condition is identified in the text as a possible outcome of obesity, and that leads to ER exhaustion?
Which of the following best describes the anatomical location of the pancreas in relation to the peritoneum?
Which of the following best describes the anatomical location of the pancreas in relation to the peritoneum?
In the macroscopic view of the pancreas, which feature is specifically described as being well-defined?
In the macroscopic view of the pancreas, which feature is specifically described as being well-defined?
What is the primary goal when assessing a patient for a pancreatic disorder, based on the stated objectives?
What is the primary goal when assessing a patient for a pancreatic disorder, based on the stated objectives?
Which of the following is NOT identified as a primary focus of study regarding pancreatic disorders?
Which of the following is NOT identified as a primary focus of study regarding pancreatic disorders?
Which of the following is included in the main focus regarding disorders of the exocrine pancreas?
Which of the following is included in the main focus regarding disorders of the exocrine pancreas?
What is the initial step in the differential diagnosis of a patient with a suspected pancreatic disorder, according to the objectives?
What is the initial step in the differential diagnosis of a patient with a suspected pancreatic disorder, according to the objectives?
Which body of guidelines does the text specifically mention for the management of severe acute pancreatitis?
Which body of guidelines does the text specifically mention for the management of severe acute pancreatitis?
What aspect of pancreatic disorders is highlighted for assessment when establishing a treatment plan in the given objectives?
What aspect of pancreatic disorders is highlighted for assessment when establishing a treatment plan in the given objectives?
What is the approximate increased risk of developing acute pancreatitis (AP) for individuals with a smoking history of at least 20 pack-years?
What is the approximate increased risk of developing acute pancreatitis (AP) for individuals with a smoking history of at least 20 pack-years?
According to the information provided, individuals with a history of more than 35 pack-years of smoking are how much more likely to develop chronic pancreatitis (CP)?
According to the information provided, individuals with a history of more than 35 pack-years of smoking are how much more likely to develop chronic pancreatitis (CP)?
Based on the content, what is the potential increase in risk of pancreatic cancer associated with smoking?
Based on the content, what is the potential increase in risk of pancreatic cancer associated with smoking?
How does low concentration exposure to nicotine (100µM) affect amylase secretion in the pancreas?
How does low concentration exposure to nicotine (100µM) affect amylase secretion in the pancreas?
What is the relationship between smoking and the occurence of recurrent acute pancreatitis (AP)?
What is the relationship between smoking and the occurence of recurrent acute pancreatitis (AP)?
What is the primary pathological process activated in acute pancreatitis involving DAMPs?
What is the primary pathological process activated in acute pancreatitis involving DAMPs?
Besides smoking, what other potential etiology of acute pancreatitis is mentioned in the text?
Besides smoking, what other potential etiology of acute pancreatitis is mentioned in the text?
Based on the information provided, what is the effect of smoking on the progression of pancreatitis?
Based on the information provided, what is the effect of smoking on the progression of pancreatitis?
What is a key factor in the development of biliary pancreatitis?
What is a key factor in the development of biliary pancreatitis?
How does alcohol influence pancreatic secretion?
How does alcohol influence pancreatic secretion?
What is the role of the mechanoreceptor PIEZO1 in the context of pancreatitis?
What is the role of the mechanoreceptor PIEZO1 in the context of pancreatitis?
Which of the following is a consequence of alcohol metabolism in acinar cells?
Which of the following is a consequence of alcohol metabolism in acinar cells?
What impact do bile acids have on aquaporins in ductal cells?
What impact do bile acids have on aquaporins in ductal cells?
Which of these can lead to ductal hypertension in the pancreas?
Which of these can lead to ductal hypertension in the pancreas?
What is the consequence of reduced aquaporin levels in pancreatic ductal cells?
What is the consequence of reduced aquaporin levels in pancreatic ductal cells?
How does the basolateral secretion of lipase contribute to pancreatitis?
How does the basolateral secretion of lipase contribute to pancreatitis?
A patient presents with jaundice and imaging reveals a pancreatic head tumor. According to the provided text, what percentage of such tumors are associated with distention of the biliary tree?
A patient presents with jaundice and imaging reveals a pancreatic head tumor. According to the provided text, what percentage of such tumors are associated with distention of the biliary tree?
Which of the following is NOT identified as a risk factor for ductal adenocarcinoma of the pancreas in the text?
Which of the following is NOT identified as a risk factor for ductal adenocarcinoma of the pancreas in the text?
A patient with pancreatic cancer develops migratory thrombophlebitis. According to the text, this is known as Trousseau sign and occurs in roughly what percentage of cases?
A patient with pancreatic cancer develops migratory thrombophlebitis. According to the text, this is known as Trousseau sign and occurs in roughly what percentage of cases?
What is the most frequent location for initial metastasis in cases of ductal adenocarcinoma of the pancreas, according to the text?
What is the most frequent location for initial metastasis in cases of ductal adenocarcinoma of the pancreas, according to the text?
According to the provided text, besides palliative chemotherapy and radiation, what is another main palliative treatment strategy for pancreatic ductal adenocarcinoma?
According to the provided text, besides palliative chemotherapy and radiation, what is another main palliative treatment strategy for pancreatic ductal adenocarcinoma?
Which of the following best describes the relationship between the cytokine storm and end-organ dysfunction in acute pancreatitis?
Which of the following best describes the relationship between the cytokine storm and end-organ dysfunction in acute pancreatitis?
According to the provided diagram, which of the following is NOT a direct end-organ dysfunction resulting from the inflammatory cascade in acute pancreatitis?
According to the provided diagram, which of the following is NOT a direct end-organ dysfunction resulting from the inflammatory cascade in acute pancreatitis?
Which of the following best describes how hypovolemia contributes to the perpetuation of acute pancreatitis?
Which of the following best describes how hypovolemia contributes to the perpetuation of acute pancreatitis?
What is the role of apoptosis of enterocytes in the perpetuation of acute pancreatitis?
What is the role of apoptosis of enterocytes in the perpetuation of acute pancreatitis?
How does bacterial translocation secondary to increased ischemia and enterocyte apoptosis worsen acute pancreatitis?
How does bacterial translocation secondary to increased ischemia and enterocyte apoptosis worsen acute pancreatitis?
Which of these processes is NOT directly related to the perpetuation of disease, according to the text?
Which of these processes is NOT directly related to the perpetuation of disease, according to the text?
What is the main consequence of the inflammatory cascade initiated by a cytokine storm?
What is the main consequence of the inflammatory cascade initiated by a cytokine storm?
Which of the following is a direct consequence of hypovolemia as it relates to acute pancreatitis?
Which of the following is a direct consequence of hypovolemia as it relates to acute pancreatitis?
Flashcards
Acinar Cells
Acinar Cells
The functional unit of the exocrine pancreas, responsible for producing digestive enzymes.
Vago-Pancreatic Reflex
Vago-Pancreatic Reflex
The primary mechanism for stimulating exocrine pancreatic secretion, involving vagal nerve stimulation and acetylcholine release.
Cholecystokinin (CCK)
Cholecystokinin (CCK)
A hormone released by the small intestine in response to the presence of protein, stimulating pancreatic enzyme secretion.
Acute Pancreatitis (AP)
Acute Pancreatitis (AP)
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Biliary Pancreatitis
Biliary Pancreatitis
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Alcoholic Pancreatitis
Alcoholic Pancreatitis
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High-Fat Diet
High-Fat Diet
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Smoking
Smoking
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Trypsin Activation
Trypsin Activation
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Cullen's Sign
Cullen's Sign
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Fluid Resuscitation for Pancreatitis
Fluid Resuscitation for Pancreatitis
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Pain Management for Pancreatitis
Pain Management for Pancreatitis
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Prophylactic Antibiotics for Pancreatitis
Prophylactic Antibiotics for Pancreatitis
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Alcohol and Smoking in Chronic Pancreatitis
Alcohol and Smoking in Chronic Pancreatitis
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Chronic Calcifying Pancreatitis
Chronic Calcifying Pancreatitis
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Ductal Adenocarcinoma
Ductal Adenocarcinoma
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KRAS Mutation in Pancreatic Cancer
KRAS Mutation in Pancreatic Cancer
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Symptoms of Ductal Adenocarcinoma
Symptoms of Ductal Adenocarcinoma
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Acute Pancreatitis
Acute Pancreatitis
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Chronic Pancreatitis
Chronic Pancreatitis
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Pancreatic Adenocarcinoma
Pancreatic Adenocarcinoma
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Intrapancreatic Enzyme Activation
Intrapancreatic Enzyme Activation
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High Alcohol Consumption and Pancreatitis
High Alcohol Consumption and Pancreatitis
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Fatty Acid Ethyl Esters and Pancreatitis
Fatty Acid Ethyl Esters and Pancreatitis
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Ketogenic Diet for Pancreatitis
Ketogenic Diet for Pancreatitis
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Obesity and Insulin Resistance in Pancreatitis
Obesity and Insulin Resistance in Pancreatitis
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Ductal Hypertension
Ductal Hypertension
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Aquaporins
Aquaporins
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PIEZO1
PIEZO1
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Auto-Digestion
Auto-Digestion
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Ductal Cells
Ductal Cells
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Smoking and Acute Pancreatitis
Smoking and Acute Pancreatitis
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Smoking and Chronic Pancreatitis
Smoking and Chronic Pancreatitis
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Smoking and Pancreatic Cancer
Smoking and Pancreatic Cancer
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Nicotine's Effect on Pancreas
Nicotine's Effect on Pancreas
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Drug-Induced Acute Pancreatitis
Drug-Induced Acute Pancreatitis
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Acute Pancreatitis: Evolution
Acute Pancreatitis: Evolution
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Acute Pancreatitis: Cytokine Storm
Acute Pancreatitis: Cytokine Storm
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Cytokine Storm
Cytokine Storm
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Systemic Inflammatory Response Syndrome (SIRS)
Systemic Inflammatory Response Syndrome (SIRS)
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Acute Respiratory Distress Syndrome (ARDS)
Acute Respiratory Distress Syndrome (ARDS)
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Acute Kidney Injury (AKI)
Acute Kidney Injury (AKI)
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Liver Failure
Liver Failure
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Heart Failure
Heart Failure
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Encephalitis
Encephalitis
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Perpetuation of Acute Pancreatitis
Perpetuation of Acute Pancreatitis
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KRAS Mutation
KRAS Mutation
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Double Duct Sign
Double Duct Sign
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Coexisting Pancreatitis
Coexisting Pancreatitis
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Percentage of Pancreas Tumors Inoperable
Percentage of Pancreas Tumors Inoperable
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Study Notes
Pancreatic Disorders
- Exocrine Pancreas: Comprises 85% of pancreatic mass; acinar cells are functional units producing digestive enzymes. Pancreatic ducts deliver secretions to the duodenum, a crucial function being bicarbonate secretion.
- Endocrine Pancreas: Composed of islet cells.
- Pancreatic Juice: ~2-3 liters/day; alkaline (pH 8-8.3), isotonic, rich in bicarbonate (NaHCO₃). Also contains enzymes (amylase, lipase, trypsin, elastase, nucleases) and proenzymes.
Acute Pancreatitis
- Characteristics: Progressive, destructive inflammatory condition of the pancreas, high morbidity/mortality.
- Recurrence/Progression: 20% of first-time cases have recurrences; 3-35% progress to chronic pancreatitis; 30% become severe, requiring ICU.
- Early Course (24-48 hours): Characterized by cytokine storm and multi-organ dysfunction.
- Atlanta Diagnostic Criteria: (2/3): Persistent severe abdominal pain (often radiating to back), 3x serum lipase/amylase increase above normal, imaging findings of pancreatitis.
- Etiology/Risk Factors:
- Acute: Gallstones, alcohol abuse, drug reactions, hypertriglyceridemia, certain medications, and infections.
- Chronic: Tobacco use, alcohol use, genetics, hypertriglyceridemia.
- Pancreatic Cancer: Tobacco use, family history, DM2, high saturated fat intake, specific genetic syndromes.
- Type 1 DM: Genetics, maternal/perinatal factors.
Biliary Pancreatitis Etiopathogenesis
- Mechanism: Increased pressure, bile acid exposure and acidification in ductal cells; Intraductal fluid stasis caused by decreasing aquaporins by bile acids.
- Pathological processes: Acini cell activation of mechanoreceptor PIEZO1 triggers pathological calcium signaling.
- Examples of ductal hypertension: Papillary edema, acidic contrast injection, gallstone obstruction.
- Other Factors: Ductal cell exposure to bile acids, and intraductal pressure increases are key pathological processes to understand.
Alcoholic Pancreatitis
- Mechanism: Alcohol inhibits apical secretion, promoting basolateral secretion of lipase, leading to release into interstitium (between cells).
- Alcohol Metabolism: Converts alcohol to fatty acid ethyl ester, acetaldehyde, and reactive oxygen species (ROS), destabilizing lysosomes and membranes.
- ATP Loss: Fatty acid ethyl esters result in reduced ATP synthesis in acinar cells.
- Risk: Associated with >40g/day for 5+ years; potentially higher risk with lower consumption.
Diet, Obesity, Smoking and Pancreatitis
- Diet/Obesity: High protein meals (esp >40g at a time) can overstimulate exocrine pancreas, causing ER stress. Obesity might increase insulin resistance/hyperinsulinemia, further stressing acinar cells.
- Smoking: Doubles risk with at least 20 pack-years. Related to recurrent and chronic pancreatitis (4.6x greater risk with > 35 pack years).
- Nicotine: Low concentrations increase CCK-induced amylase secretion (ER stress).
- Dietary fat: High intake of dietary saturated fat is a risk factor.
Evolution of Acute Pancreatitis
- Causative Factors: Damage to pancreatic acinar cells.
- Activation Cascade: Trypsin activation leads to edema, inflammation; activation of other enzymes (chymotrypsin, elastase, phospholipase A2, lipase) further promotes inflammation, vascular damage, fat necrosis.
- Symptoms (Signs): Cullen's sign (bruising around umbilicus), Grey Turner's sign (flank bruising).
Perpetuation of the Disease
- Factors: Hypovolemia (vomiting, diarrhea, anorexia); third space fluid loss; intestinal ischemia due to enterocyte apoptosis and bacterial translocation.
Diagnostic Approach
- Etiology Determination: Focus on determining underlying cause (gallstones, alcohol, drugs) via history, endoscopic procedures.
- Assessment: Medical history, drug history, electrolyte profile, blood oxygenation, biochemistry, complete blood count (CBC).
- Further investigations: Virology, endoscopic ultrasound, IgG4, other immunoglobulins (Ig), C-reactive protein (CRP).
Management of Pancreatitis
- Fluid Resuscitation: 10 mL/kg bolus in hypovolemia, followed by 1.5 mL/kg/hour maintenance.
- Pain Management: Multimodal approach (paracetamol, metamizole, opiates, epidural analgesia).
- Antibiotics: Prophylactic carbapenems.
- Infected Necrosis: Surgical drainage.
- Nutrition: 15-35 kcal/kg/day; 3-6 g glucose/kg/day (with insulin to maintain blood glucose < 10 mmol/L). 1.2-1.5 g/kg protein (1.8 in severe cases).
Chronic Pancreatitis
- Types: Calcifying, obstructive, steroid-responsive (autoimmune).
- Causes: Alcohol, smoking, genetics, idiopathic (juvenile, tropical, senile), hypertriglyceridemia and certain medications.
- Obstructive: Strictures (blunt trauma, endoscopic stenting, acute pancreatitis, anastomotic strictures/tumors (adenocarcinoma, IPMN, serous cystadenoma, islet cell tumor).
- Risk factors: Continued smoking after development accelerates chronic pancreatitis progression; Genetics & cystic fibrosis can cause acute recurrent pancreatitis.
- Pathological features: Fibrosis, loss of acinar tissue, duct distortion/dilation.
Pancreatic Ductal Adenocarcinoma
- Description: Most common pancreatic cancer; 4th leading cancer death cause in US.
- Characteristics: Invasive pancreatic epithelial neoplasm with glandular (ductal) differentiation.
- Poor Prognosis: Often aggressive
- Tumor Location and Manifestations: Head tumors often cause biliary obstruction/jaundice.
- Metastasis: Common to local lymph nodes, liver, lungs, peritoneum, adrenal glands, bone.
- KRAS Mutation: Frequent mutation impacting cell growth/death regulation (>90%).
- Risk Factors: Smoking, alcohol abuse, obesity, dietary saturated fat, chronic pancreatitis, diabetes, specific genetic syndromes (Peutz-Jeghers, hereditary pancreatitis, familial atypical mole melanoma, Lynch syndrome. familial breast cancer).
- Clinical Features: Back pain, weight loss, malaise, jaundice, diabetes, Trosseau Sign (Migratory thrombophlebitis in some cases (10%)).
- Diagnosis: Lab tests (CA19-9 detection); Double duct sign (biliary and pancreatic duct dilation).
- Treatment: Palliative, including bypass surgery, chemotherapy, radiation therapy.
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