Wunderlich syndrome secondary to severe acute pancreatitis.

A 35-year-old male was diagnosed with severe acute pancreatitis (SAP). CT showed inflammation changes of the pancreas and peripancreatic tissue, known as pseudocyst formation. The patient subsequently heard a clicking noise in his abdomen, followed by left low back pain and abdominal distension with palpitation and hemodynamic instability. Blood tests showed a high white blood cell count (38.2 x 109/L) and low hemoglobin level (55 g/L). CT revealed a massive subcapsular hematoma of the left kidney that filled the left abdominal cavity.