Which block can cause a hematoma? (Select all that apply. )

Question

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The posterior superior alveolar nerve,artery,and vein are all located together within the pterygopalatine fossa just distal and superior to the tuberosity of the maxilla.They are not covered by bone at this point.A needle could easily puncture or barely scrape a nerve,artery,or vein.If this occurs,it would be painful but also could cause a bleeding situation from a blood vessel,the nerve,if punctured or even touched,emits an extremely painful reaction (nerve shock).If a bleeding situation occurs,a swelling followed by a hematoma will result.If the needle is delivered further distally,even more serious bleeding and other traumatic events could occur.An infraorbital nerve block can be painful and can cause a hematoma in the lower eye lid,so the clinical conditions must warrant the risk associated with this block.

Which Block Can Cause a Hematoma? (Select All That Apply