The adenomatoid odontogenic tumor (TOA) consists of a neoplastic lesion of odontogenic epithelium embedded in mature connective tissue characterized by slow but progressive growth [1,2]. The World Health Organization (WHO) classifies it into benign tumor lesions of odontogenic epithelium with mature fibrous stroma without ectomesenchyme .
Dreibladt was first described in the year 1907 as a variant of the ameloblastoma, naming it pseudo-adenoma-adamantine, later in the year 1915 Harbitz called it cystic adamantinoma. In 1948 Stafne considered it as a variant of ameloblastoma and finally in 1969 Philipsen establishes it as an individual entity, independent of the ameloblastoma, giving it the name of adenomatoid odontogenic tumor, denomination that was adopted in the first edition of the classifications of tumors odontogenic diseases in 1971 and ratified in the classifications of 1992 and 2005 . Abstract The adenomatoid odontogenic tumor (TOA) is considered by the World Health Organization as a benign tumor of odontogenic epithelium, with mature fibrous stroma, without ectomesenchyme, which represents between 2-7% of all benign tumors. It is characterized by slow but progressive growth of predilection by the anterior region of the maxilla and associated with a retained tooth.
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