Pancreatic mucinous cystadenoma doubly complicated by acute pancreatitis and retroperitoneal rupture.

Mucinous cystadenomas are the most frequent cystic benign tumors of the pancreas. They are characterized by a malignant potential. Acute pancreatitis is their most common complication. This manuscript reports a unique complication of mucinous cystadenomas of the pancreas: retroperitoneal rupture associated to acute pancreatitis. After resuscitation, the patient underwent surgery. A cystic mass of the pancreas tail with retroperitoneal rupture was found. Splenopancreatectomy was performed. Outcomes were straightforward. After 3 years of follow-up, no signs of recurrence are highlighted.