Keratocystic odontogenic tumour
（重定向自Odontogenic keratocyst）
![](/Images/godic/202501/30/Keratocystic_odontogenic_tumour_-_2_-_very_high_mag4659.jpg")
![Classic look to a keratocyctic odontogenic tumor in the right mandible in the place of a former wisdom tooth. Unicystic lesion growing along the bone.](/Images/godic/202501/30/Classic_keratocystic_odontogenic_tumour4659.jpg")
![Massive keratocystic odontogenic tumour with impacted wisdom teeth superficial to lesion](/Images/godic/202501/30/Massive_keratocystic_odontogenic_tumour4659.jpg")
A keratocystic odontogenic tumour (also keratocystic odontogenic tumor, KCOT) is a rare and benign but locally aggressive developmental cystic neoplasm. It most often affects the posterior mandible.
It used to be called odontogenic keratocyst (OKC).