A Case of Perinephric Pancreatic Pseudocyst Secondary to Pancreatitis.

Pancreatic pseudocyst is a rare complication of pancreatitis, characterized by an abnormal connection between the pancreas and the renal system. We present a case of a 42-year-old male who developed a pancreatic pseudocyst secondary to severe acute pancreatitis. The patient presented with abdominal pain, nausea, vomiting, and weight loss. Imaging studies revealed chronic pancreatitis, pseudocyst, and a fistulous tract between the pancreas and the left kidney. Management included surgical intervention, nutritional support, and medical treatment. The patient presented a month later with a post-operative infection of the pseudocyst for which a percutaneous drainage catheter was placed under ultrasound guidance. Subsequently, he showed improvement in symptoms and laboratory parameters and was discharged in a stable condition. This case underscores the importance of a multidisciplinary approach in managing complex pancreatic pseudocysts, especially those with renal involvement, to prevent complications and to optimize outcomes.