ABSTRACT
PURPOSE: We report a case of periocular necrotizing fasciitis originating from dontogenic infection. CASE SUMMARY: A 53-year-old man, who had suffered from severe periodontitis one week prior, visited our clinic due to a 2-day history of rapidly progressing left mandibular and periorbital swelling and pain. By the time of his visit, he had lost vision in the left eye and had moderate swelling, expression of pus, and skin explosion with necrotizing discoloration of the left lid and lower facial area. MRI of the orbits revealed soft tissue necrosis, gas accumulation, and subperiosteal abscess formation of the left orbit. CONCLUSIONS: Through the diagnosis of necrotizing fasciitis originating from an odontogenic infection, the proper administration of antibiotics and surgical management were achieved. As a result, we were able to preserve the eye.