Also known as a "Fight Bite" or "Reverse Bite Injury"
Result of striking another individual's teeth with clenched fist
Although may appear benign, significant morbidity can result from late presentation or inadequate initial management
Complications are frequent and include joint violation (68%), tendon injury (20%), and fracture (17%)
Closed fist infection
Hand and finger fractures
Exotic pet infections
Bed bugs
Hand deep space infection
Closed fist infection 
Mammalian bites
Digital Mixoid Cyst 