The adenomatoid odontogenic tumor (AOT) is included in classifications of odontogenic tumors because it occurs only in the tooth-bearing area of the jaws and because of its histomorphologic resemblance to components of the dental organ (tooth germ). Although numerous cases have been reported, AOT generally is considered to be an uncommon tumor. Its distinctive, although not pathognomonic, clinicopathologic profile is unique among odontogenic tumors because most lesions occur in association with an unerupted maxillary cuspid in teenage girls. Although the so-called ‘‘duct-like structures’’ are a unique (although not always present) microscopic feature of AOT, a diagnostic pitfall has been delineated. No unequivocal recurrences have been reported despite known incomplete removal of some tumors.