“…The expanding hematomas were bilateral, occurred immediately after surgery in the recovery area, and required return to the operating room for evacuation. A search for accepted etiologic factors, 1–6 including preoperative history of hypertension, bleeding abnormality, medication use, intraoperative technical problem, use of propofol, blood loss, postoperative hypertension, coughing, retching, and agitation was carried out. Preoperative hypertension and the use of propofol were identified in this patient and may have contributed to hematoma formation.…”