Pancreatic necrosis: CT manifestations.

Area of Science:

• Radiology
• Gastroenterology
• Surgical Pathology

Background:

• Pancreatic necrosis, a severe complication of acute pancreatitis, involves devitalized tissue.
• Accurate diagnosis is crucial for therapeutic planning but challenging with clinical and laboratory data alone.

Purpose of the Study:

• To evaluate the utility of computed tomography (CT) in diagnosing pancreatic necrosis.
• To correlate CT findings with the developmental stage of pancreatic necrosis.

Main Methods:

• Retrospective analysis of CT examinations in 22 patients with pancreatic necrosis over 18 months.
• Correlation of CT findings with clinical and pathological data.
• CT-guided aspiration for culture in suspected superinfections.

Main Results:

• CT findings varied with the stage of necrosis; overlap with phlegmon occurred in the acute phase.
• Subacute and chronic stages showed diffuse gland enlargement, decreased central density, and a saclike configuration.
• Negative cultures in two patients allowed for more elective surgical intervention.

Conclusions:

• CT is valuable for diagnosing pancreatic necrosis and assessing its stage.
• Characteristic CT findings aid in differentiating necrosis from phlegmon and planning treatment.
• CT-guided aspiration can inform management decisions regarding superinfection.