[A case of recurrent mediastinal pancreatic pseudocyst].

A 46-year-old man complaining right lateroabdominal pain and dysphagia was admitted our hospital. The CT examination revealed the low density area spreading through the mediastinum. The patient's condition improved with fast and antibiotics. He was discharged from the hospital, having an equivocal diagnosis. Seven months later, his symptoms relapsed and he was hospitalized again. Further evaluation confirmed that his disease was the mediastinal pancreatic pseudocyst occurred by a pancreatic stone. The pseudocyst resolved twice with conservative therapy, fast and intravenous injection of antibiotics. We consider it a rare case, because mediastinal pancreatic pseudocyst generally have the tendency of becoming severe. Finally the operation was performed for depriving the pancreatic stone, which was the cause of pancreatic pseudocyst.