Pancreatic solid pseudopapillary neoplasm mimicking a pseudocyst in a young female with acute pancreatitis.
Solid pseudopapillary epithelial neoplasm (SPEN) of the pancreas is a rare, low-grade pancreatic neoplasm that is uncommon in the pediatric population. We present the case of previously healthy 11-year-old girl with a pancreatic mass initially misdiagnosed as a pseudocyst, later confirmed to be a SPEN. This report highlights key clinical and imaging features distinguishing SPEN from pancreatic pseudocysts and underscores the importance of maintaining a broad differential diagnosis when the clinical course is atypical.