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Clinical Problem Solving: Radiology
Aug 2011

Radiology Quiz Case 2: Diagnosis

Author Affiliations


Arch Otolaryngol Head Neck Surg. 2011;137(8):826-827. doi:10.1001/archoto.2011.124-b

Diagnosis: Keratocystic odontogenic tumor (KCOT)

Jaw cysts, which are quite common, are generally thought to be derived from either epithelial remnants of the tooth germ or the basal layer of the surface epithelium. They represent approximately 17% of the tissue specimens that are submitted to oral pathology biopsy services.1 The most common odontogenic cyst is the radicular cyst (52.3%-70.7%), followed by dentigerous cysts (16.6%-21.3%), and KCOTs (5.4%-17.4%).2

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