The<unk>  is an<unk>  tumor arising from the enamel organ or dental lamina.    The most common location is in the anterior maxilla. In 75% of cases, it is associated with an unerupted tooth.<unk>  <unk>  is a rare tumor of epithelial origin comprising 3% of all the<unk>  tumors. It is a benign, painless, noninvasive, and slow-growing lesion, with a relative frequency of 2.2-13% and often misdiagnosed as an<unk>  cyst on clinical examination.<unk>  affects young individuals with a female predominance, occurs mainly in the second decade, and usually surrounds the crown of unerupted teeth. This lesion is most commonly located in the anterior maxilla and rarely in the mandible. It is usually associated with an impacted canine.<unk>  frequently resembles lesions like dentigerous cyst or ameloblastoma.<unk>  has three variants, follicular, extrafollicular, and peripheral. The intraoral periapical radiograph is the best radiograph to show radiopacities in<unk>  as discrete foci having a flocculent pattern within radiolucency even with minimal calcified deposits. These calcified deposits are seen in approximately 78% of the lesions. Herewith, we present the report of four unusual cases of<unk>  located in the mandible, with an emphasis on radiographic findings and on pathologic correlation, and on reviewing the existing literature on this tumor.<unk>  <unk>  is a rare tumor of epithelial origin comprising 3% of all the<unk>  tumors.[1,2] It was first described by Steensland in 1905. In 1907,<unk>  was described as pseudo-adenoameloblastoma by Dreibladt. Stafne in 1948 considered<unk>  as a distinct entity, whereas others believed it to be a variant of ameloblastoma.[3,4] In 1969, Philipsen and Birn declined this thought and suggested the name<unk> ’. In 1971, the World Health Organization (WHO) adopted the term<unk> ’. Max and Stern, in 2003, coined the name<unk><unk>  cyst’. Various terms like adenoameloblastoma, ameloblastic<unk>  tumor, adamantinoma, epithelioma adamantinum, and teratomatous odontoma were used before the term<unk> .[2,3]<unk>  is a benign, painless, noninvasive, and slow-growing tumor that does not infiltrate the bone. Clinically, it is often misdiagnosed as an<unk>  cyst. The tumor appears as an intraoral-extraoral swelling in the maxilla and is sometimes referred to as ‘two-third tumor’ because it occurs in the maxilla in about two-third cases, about two-third cases arise in young females, two-third cases are associated with an unerupted tooth, and two-third affected teeth are canines.[5,6] The origin of the<unk>  is controversial. It is thought to arise from<unk>  epithelium because it occurs in the tooth-bearing areas of the jaws, is often associated with the impacted tooth, and has various components of the enamel organ, dental lamina, reduced enamel epithelium, and/or their remnants.
The purpose of this article is to report and analyze four unusual cases of<unk>  located in the mandible, with an emphasis on radiographic findings and with pathologic correlation, and to review the existing literature on this tumor.
Adenomatoid odontogenic tumor
Ganglion cyst
Malignant acrospiroma
Colloid cyst
Pilomatricoma
Krukenberg tumor
Ossifying fibromyxoid tumour
Klatskin tumor