We report an uncommon case of severe silent acute pancreatitis (SSAP) caused by compression of the Ductus pancreaticus due to an abdominal aortic aneurysm (AAA) of 79 mm × 59 mm external diameter. A 78-year-old patient with known cutaneous progressive T-cell lymphoma and hypertension was referred to our institution in August 2013. During hospitalisation the patient became somnolent and developed elevated infection parameters. Abdominal ultrasonography showed a pulsating abdominal mass and CT examination revealed a stretched pancreas and an underlying partial thrombosed juxtarenal AAA extending distally to the origin of the superior mesenteric artery (SMA) and the aortic bifurcation without signs of visceral malperfusion elsewhere. The Ductus pancreaticus was dilated without involvement of the head. There were no additional radiological findings of occupying character other than the AAA. Because of his advanced age, increasing inflammatory parameters, and cutaneous T-cell lymphoma the patient was at this point neither suitable for open AAA surgery nor endovascular treatment. His clinical condition worsened due to development of a systemic inflammatory response syndrome (SIRS) and resulted in death. The presented case demonstrates that a growing AAA can cause, besides severe complications like perforation or dissection, in some rare cases SSAP as a first complication.