A pancreatic pseudocyst is a fluid-filled sac that forms outside the pancreas, typically as a complication of pancreatitis or abdominal trauma. Unlike true cysts, pseudocysts lack an epithelial lining. On ultrasound, they appear as well-defined, anechoic or hypoechoic lesions, often with internal debris or septations, crucial for accurate abdominal diagnosis.
Ultrasound is a primary imaging modality for detecting and monitoring pancreatic pseudocysts, offering real-time visualization without radiation. Early identification and characterization are vital for guiding patient management, from conservative observation to drainage procedures, enhancing medical decision-making for abdominal conditions.