Severe bleeding after operation of preauricular fistula: A case report

Figure 1  The patient’s right submaxillary and submental areas were swollen (marked by orange arrow).

Figure 2 Neck computed tomography showed low density soft tissue shadow in the right submandibular space, laryngeal shift to the left, and subcutaneous tissue thickening. Sternocleidomastoid (s); Submandibular gland (sg); Blood accumulation (orange star).

Figure 3 Intraoperative bleeding of the superficial temporal artery. Superficial temporal artery (orange arrow); Superficial temporal artery, frontal branch (yellow arrow); Superficial temporal artery, parietal branch (blue arrow).