Acute pancreatitis: clinical vs. CT findings

Area of Science:

• Radiology
• Gastroenterology
• Abdominal Imaging

Background:

• Acute pancreatitis is a common gastrointestinal emergency.
• Accurate staging and characterization of acute pancreatitis are crucial for patient management.
• Computed tomography (CT) is a primary imaging modality for evaluating acute pancreatitis.

Purpose of the Study:

• To correlate computed tomographic (CT) findings with the clinical classification of acute pancreatitis.
• To assess the utility of CT in identifying different subtypes of acute pancreatitis.
• To evaluate the persistence of CT findings following clinical resolution.

Main Methods:

• Prospective study of 91 patients diagnosed with acute pancreatitis.
• Correlation of clinical diagnosis with findings on computed tomography (CT).
• Follow-up CT scans were performed in a subset of patients.

Main Results:

• Acute edematous pancreatitis (63 patients) showed normal CT (28%) or limited pancreatic inflammation (61%).
• Phlegmonous changes were noted in 11% of edematous cases, including one with unsuspected hemorrhage.
• Acute necrotizing pancreatitis (9 patients) consistently showed CT abnormalities (100%), with 89% exhibiting phlegmonous changes, and complications like abscesses were observed.
• Acute exacerbation of chronic pancreatitis (10 patients) demonstrated calcifications (70%), focal masses (40%), and ductal dilation (30%).
• CT findings, particularly phlegmonous changes, could persist for months after clinical symptom resolution.

Conclusions:

• CT findings effectively differentiate between types of acute pancreatitis.
• CT can reveal complications and unsuspected severity, such as hemorrhage in edematous pancreatitis.
• Persistence of CT abnormalities post-clinical recovery highlights the need for careful interpretation of follow-up imaging.