A 13-year-old patient got a trauma in the area of median face zone. She complains about pain, swelling of soft tissues in the area of her upper jaw, pain during mouth closing. Examination revealed mobility of nose bones, significant swelling of soft tissues in the left zygomatic area, haemorrage in the eye sclera, "step"sign along the inferior edge of both orbits and zygomaticomaxillary sutures, nasal hemorrhage, open bite, lengthening of median face part. Make a clinical diagnosis: