Risks of celiac plexus block complications?

Several risks: The most common is pain or soreness at the injection site. Uncommon risks involve bleeding, infection, or unintended injection of local anesthetic into the spinal fluid, epidural space, blood vessels, or other nearby organs. Rarely, a lung may collapse. Fortunately, serious complications are uncommon. Make sure a qualified physician (radiologist, anesthesiologist) does the block.

Bleeding: The biggest risk is bleeding, block failure, soreness at the site of the block placement. Very rare risks include nerve injury and infection.