Abstract
Mandible angle ostectomy is the most widely-operated facial contour surgery. We experienced a rare case of necrotizing fasciitis of the lower leg following mandible angle ostectomy. A 20 years old female visited our department 5 days after mandible angle ostectomy. At the time, she was diagnosed as sepsis and on her 2nd admission day, she was diagnosed as necrotizing fasciitis on her left leg. She was treated by fasciotomy and necrotized tissue removal. Necrotizing fasciitis is a rare complication of any kinds of operation but once it develops, it causes fatal results, especially to cosmetic surgeries. Early diagnosis and aggressive operation is known as only treatment for the disease.