Ruptured Pseudoaneurysm in the Inferior Pancreaticoduodenal Artery.

A previously healthy 55-year-old man presented to the emergency room with abdominal pain. He had noticed abdominal pain in the right upper quadrant suddenly after a coughing. We performed abdominal computed tomography (CT), which showed idiopathic retroperitoneal bleeding, but the source of bleeding was unclear (Picture a). We hesitated to perform surgery because his clinical condition has improved after being treated with fasting and fluid replacement. Five days after admission, his abdominal pain had worsening and became severe, so we performed abdominal CT again, which demonstrated a pseudoaneurysm in the inferior pancreaticoduodenal artery (Picture b). We therefore performed coil embolization (Picture c and d). After embolization, his clinical condition quickly improved. He has been symptom-free since being discharged from the hospital.

Picture.