Acute pancreatitis (AP): Acute inflammation of pancreas with variable involvement of local/regional tissues
2 of 3 features are required for diagnosis
Abdominal pain consistent with disease
Rise in serum amylase or lipase ≥ 3x normal
Imaging findings consistent with AP
2 types of AP
Interstitial edematous pancreatitis
Necrotizing pancreatitis
Acute recurrent pancreatitis (ARP): ≥ 2 distinct episodes of AP with complete resolution of pain for ≥ 1 month or normalization of enzyme levels
Chronic pancreatitis (CP): Requires 1 or more of following clinical features or imaging findings of chronic pancreas damage
Abdominal pain consistent with pancreatic origin
Exocrine pancreatic insufficiency
Endocrine pancreatic insufficiency
Fluid collections
Acute peripancreatic fluid collection: Fluid collection associated with interstitial edematous pancreatitis during first 4 weeks
Pancreatic pseudocyst: Fluid collection associated with interstitial edematous pancreatitis after first 4 weeks
Acute necrotic collection: Collection containing fluid & necrotic material during first 4 weeks
Walled-off necrosis: Collection containing fluid & necrotic material after first 4 weeks
IMAGING
General Features
Radiographic Findings
Ultrasonographic Findings
CT Findings
MR Findings
Nonvascular Interventions
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Murati MA et al: Magnetic resonance imaging glossary of findings of pediatric pancreatitis and the revised Atlanta classification. Pediatr Radiol. ePub, 2021
Trout AT et al: NASPGHAN and the Society for Pediatric Radiology joint position paper on noninvasive imaging of pediatric pancreatitis: literature summary and recommendations. J Pediatr Gastroenterol Nutr. 72(1):151-67, 2021
Trout AT et al: Noninvasive imaging of pediatric pancreatitis: joint recommendations from the NASPGHAN and the Society for Pediatric Radiology. Pediatr Radiol. 51(1):8-10, 2021
Trout AT et al: Current state of imaging of pediatric pancreatitis: AJR expert panel narrative review. AJR Am J Roentgenol. 217(2):265-77, 2021
Grover AS et al: Updates in pediatric pancreatology: proceedings of the NASPGHAN Frontiers in Pediatric Pancreatology Symposium. J Pediatr Gastroenterol Nutr. 68(2):e27-33, 2019
King G et al: Autoimmune pancreatitis in a child: a challenging diagnosis. Arch Dis Child.106(2):185, 2019
Abu-El-Haija M et al: Pediatric chronic pancreatitis: Updates in the 21st century. Pancreatology. 18(4):354-59, 2018
Trout AT et al: Normal pancreatic parenchymal thickness by CT in healthy children. Pediatr Radiol. 48(11):1600-5, 2018
Abu-El-Haija M et al: Classification of acute pancreatitis in the pediatric population: clinical report from the NASPGHAN Pancreas Committee. J Pediatr Gastroenterol Nutr. 64(6):984-90, 2017
Trout AT et al: Secretin-enhanced magnetic resonance cholangiopancreatography for assessing pancreatic secretory function in children. J Pediatr. 188:186-91, 2017
Restrepo R et al: Acute pancreatitis in pediatric patients: demographics, etiology, and diagnostic imaging. AJR Am J Roentgenol. 206(3):632-44, 2016
Zhao K et al: Acute pancreatitis: revised Atlanta classification and the role of cross-sectional imaging. AJR Am J Roentgenol. 205(1):W32-41, 2015
Thoeni RF: The revised Atlanta classification of acute pancreatitis: its importance for the radiologist and its effect on treatment. Radiology. 262(3):751-64, 2012
Related Anatomy
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Related Differential Diagnoses
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References
Tables
Tables
KEY FACTS
Terminology
Imaging
Clinical Issues
TERMINOLOGY
Definitions
Acute pancreatitis (AP): Acute inflammation of pancreas with variable involvement of local/regional tissues
2 of 3 features are required for diagnosis
Abdominal pain consistent with disease
Rise in serum amylase or lipase ≥ 3x normal
Imaging findings consistent with AP
2 types of AP
Interstitial edematous pancreatitis
Necrotizing pancreatitis
Acute recurrent pancreatitis (ARP): ≥ 2 distinct episodes of AP with complete resolution of pain for ≥ 1 month or normalization of enzyme levels
Chronic pancreatitis (CP): Requires 1 or more of following clinical features or imaging findings of chronic pancreas damage
Abdominal pain consistent with pancreatic origin
Exocrine pancreatic insufficiency
Endocrine pancreatic insufficiency
Fluid collections
Acute peripancreatic fluid collection: Fluid collection associated with interstitial edematous pancreatitis during first 4 weeks
Pancreatic pseudocyst: Fluid collection associated with interstitial edematous pancreatitis after first 4 weeks
Acute necrotic collection: Collection containing fluid & necrotic material during first 4 weeks
Walled-off necrosis: Collection containing fluid & necrotic material after first 4 weeks
IMAGING
General Features
Radiographic Findings
Ultrasonographic Findings
CT Findings
MR Findings
Nonvascular Interventions
Imaging Recommendations
DIFFERENTIAL DIAGNOSIS
PATHOLOGY
General Features
Staging, Grading, & Classification
CLINICAL ISSUES
Presentation
Demographics
Natural History & Prognosis
Treatment
DIAGNOSTIC CHECKLIST
Consider
Selected References
Murati MA et al: Magnetic resonance imaging glossary of findings of pediatric pancreatitis and the revised Atlanta classification. Pediatr Radiol. ePub, 2021
Trout AT et al: NASPGHAN and the Society for Pediatric Radiology joint position paper on noninvasive imaging of pediatric pancreatitis: literature summary and recommendations. J Pediatr Gastroenterol Nutr. 72(1):151-67, 2021
Trout AT et al: Noninvasive imaging of pediatric pancreatitis: joint recommendations from the NASPGHAN and the Society for Pediatric Radiology. Pediatr Radiol. 51(1):8-10, 2021
Trout AT et al: Current state of imaging of pediatric pancreatitis: AJR expert panel narrative review. AJR Am J Roentgenol. 217(2):265-77, 2021
Grover AS et al: Updates in pediatric pancreatology: proceedings of the NASPGHAN Frontiers in Pediatric Pancreatology Symposium. J Pediatr Gastroenterol Nutr. 68(2):e27-33, 2019
King G et al: Autoimmune pancreatitis in a child: a challenging diagnosis. Arch Dis Child.106(2):185, 2019
Abu-El-Haija M et al: Pediatric chronic pancreatitis: Updates in the 21st century. Pancreatology. 18(4):354-59, 2018
Trout AT et al: Normal pancreatic parenchymal thickness by CT in healthy children. Pediatr Radiol. 48(11):1600-5, 2018
Abu-El-Haija M et al: Classification of acute pancreatitis in the pediatric population: clinical report from the NASPGHAN Pancreas Committee. J Pediatr Gastroenterol Nutr. 64(6):984-90, 2017
Trout AT et al: Secretin-enhanced magnetic resonance cholangiopancreatography for assessing pancreatic secretory function in children. J Pediatr. 188:186-91, 2017
Restrepo R et al: Acute pancreatitis in pediatric patients: demographics, etiology, and diagnostic imaging. AJR Am J Roentgenol. 206(3):632-44, 2016
Zhao K et al: Acute pancreatitis: revised Atlanta classification and the role of cross-sectional imaging. AJR Am J Roentgenol. 205(1):W32-41, 2015
Thoeni RF: The revised Atlanta classification of acute pancreatitis: its importance for the radiologist and its effect on treatment. Radiology. 262(3):751-64, 2012
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