Periorbital Ecchymosis (Raccoon Eye) and Orbital Hematoma following Endoscopic Retrograde Cholangiopancreatography.

Endoscopic retrograde cholangiopancreatography (ERCP) is a conventional technique for diagnosis and treatment of pancratobiliary diseases, which is associated with various complications, including pancreatitis, hemorrhage, cholangitis, perforation, and mortality. In our case, a 69-year-old woman with positive hepatobiliary symptoms underwent ERCP, at the end of which a rare complication (raccoon eye) occurred, which was hypothesized to be due to amyloidosis, but the patient refused to complete the diagnostic procedure and became symptom free after 3 weeks. Racoon eye or periorbital ecchymosis is caused by blood tracking into periorbital tissues, which is frequently observed after head trauma but is also observed in systemic diseases, such as amyloidosis, neuroblastoma, and surgical interventions. To the best of our knowledge, this is the first report of raccoon eye after ERCP; further reports will help to confirm that this complication should also be considered before performing ERCP and that complete diagnostic tests for the predisposing diseases prior to ERCP are necessary.