Why Black Eyes?

Hello nurses. Recently a patient returned from the OR with black eyes following a procedure no where near the face. Don't want to give too much detail here you understand. Most of the bruising/bleeding was on the upper eyelids, and also bleeding ran under the skin alongside the nose, puffing out like a little bag of blood/hematoma. This was a complete surprise to the patient/floor nurses/docs. PT/PTT WNL. No HX bleeding disorders. Nobody was able to give a plausible reason. What if any thoughts can you offer re this. Perplexing.