Pancreatic injuries are rare but particularly insidious consequences of traffic accidents. Their clinical course can be unpredictable, with potential long-term complications arising long after the acute phase has been treated, falling outside the classic framework of acute pancreatitis. The aim of this study is to illustrate the complexity and dynamics of the several-year clinical course of post-traumatic pancreatic injury in a young man, with particular consideration of the role of possible interruption of the Wirsung duct and the underlying anatomical conditions. A 21-year-old man developed acute pancreatitis complicated by recurrent formation of peripancreatic fluid collections following abdominal trauma. Despite early intervention and intensive treatment, the disease became chronic, with periods of apparent stabilization and sudden exacerbations. During subsequent hospital stays, staged endoscopic procedures were performed, including drainage of the reservoirs and temporary pancreatic duct stenting. Radiological imaging suggested disconnected the Wirsung duct, and the clinical course of the disease was further complicated by suspected pancreas divisum. The lack of clear confirmation of this anomaly significantly hindered the permanent control of the patient’s clinical condition. This case report highlights the fact that traumatic damage to the pancreas can contribute to a long-term destructive and recurrent disease process. Staged treatment using the latest endoscopic techniques can help protect the patient from extensive surgery, although it does not eliminate the need for long-term and careful observation. Effective management requires the involvement of an experienced team, individualized therapy, and treatment in specialized centres.