Fig. 1

Preoperative appearance of large hematomas in the oral cavity. The hematomas were approximately 60 (right buccal mucosa) and 30 mm in diameter (left buccal mucosa)
Preoperative appearance of large hematomas in the oral cavity. The hematomas were approximately 60 (right buccal mucosa) and 30 mm in diameter (left buccal mucosa)