Post-traumatic Pseudocyst of the Spleen: A Report of a Rare Case.

Splenic pseudocysts are multifactorial in etiology, with trauma being the most common causative factor, wherein an intrasplenic hematoma forms and subsequently liquefies. They can also develop as a result of infections - both local and systemic - through an inflammatory process and tissue necrosis. Pancreatitis-induced splenic pseudocysts, although exceedingly rare, arise either from the direct extension of pancreatic inflammation, enzymatic autodigestion of the pancreas, or the close anatomical relationship between the pancreas and spleen. Splenic pseudocysts are diagnosed by demonstrating their size, location, and internal septations or calcifications on imaging modalities such as computed tomography (CT) and magnetic resonance imaging. Although less sensitive than CT at discerning subtle details, ultrasonography plays a major role in initial and longitudinal monitoring, particularly due to its lack of radiation exposure, which is beneficial for certain patient populations, including pregnant or pediatric patients.