Odontogenic adenomatoid tumor (adenoameloblastoma)

Giansanti, Joseph S.; Someren, Ayten; Waldron, Charles A.

doi:10.1016/0030-4220(70)90016-2

Cited by 104 publications

(29 citation statements)

References 37 publications

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“…Regarding a fairly common canine-associated AOT in the maxilla (47% of lesions with an unerupted tooth) [32], an origin from enamel organ of a normal or supernumerary series is unacceptable, since a missing permanent canine is unusual and a supernumerary tooth is very rare in this region [19]. Even if AOT occurs in the enamel organ itself while amelogenesis is still in progresses, a partially formed or malformed crown should be inevitable.…”

Section: Brief Summarymentioning

confidence: 99%

“…Although it is conceivable that E 1 subtype (no relation to tooth structures either erupted or unerupted) may exist, such cases take place only very rarely, if at all [32]. In any event, it is theoretically possible that normal eruption of its associated tooth may leave AOT either on a lateral root surface (E 2 ; inter-radicular [ Fig.…”

Section: Extracoronal Variantmentioning

confidence: 99%

“…The question thus arises as to why some AOT relates to the permanent molar which has no deciduous predecessor, although it consists of less than 4% of pericoronal lesions (see Refs. [2] and [30] for an additional list of references) [1,27,29,[31][32][33][34][35][36][37][38][39]. Suffice it to say that unlike the deciduous tooth, the permanent molar also has a molar gubernacular cord [18,20,22].…”

Section: Introductionmentioning

confidence: 99%

“…Although only soft tissues were processed in the majority of AOT, there were a few reports describing the gross appearance of a lesional tooth [12,32,36,47,49,50]. As far as we know, three cases of pericoronal AOT showed areas of enamel hypoplasia on the involved crown [6,51,52], all of which were focal (occlusal surfaces of an upper deciduous canine [6] and lower permanent first premolar [52] and cervical area of an upper first premolar [51]).…”

Section: Introductionmentioning

confidence: 99%

“…As far as we know, three cases of pericoronal AOT showed areas of enamel hypoplasia on the involved crown [6,51,52], all of which were focal (occlusal surfaces of an upper deciduous canine [6] and lower permanent first premolar [52] and cervical area of an upper first premolar [51]). This suggests that most AOT may start to grow after the crown formation reaches completion, thus leaving no trace of enamel hypoplasia [12,32,36,49].…”

Section: Introductionmentioning

confidence: 99%

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Development and Growth of Adenomatoid Odontogenic Tumor Related to Formation and Eruption of Teeth

Ide

Mishima

Kikuchi

et al. 2011

Head and Neck Pathol

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The number of published cases of adenomatoid odontogenic tumor (AOT) has steadily increased, and about half were reported in Asian populations. Although the clinicopathologic profile of AOT has been extensively reported, factual knowledge of its pathogenesis is rudimentary at best, and there is controversy as to precisely which odontogenic epithelium it arises from. AOT is a successional tooth-associated lesion which develops during the mixed dentition. The permanent successor differs from its deciduous predecessor in that it has an eruptive pathway from the dental follicle to the gingiva, the gubernaculum dentis. With this background in mind, the present review focuses mainly on the early development of AOT. We successfully demonstrated a close spatial relationship between AOT and the gubernaculum dentis in a typical case. From further observations of the same AOT in which an enclosed permanent canine showed enamel hypoplasia, it is possible to pinpoint areas around the crown of a developing successional tooth in continuity with the gubernaculum dentis as starting points. In addition, we discuss the unifying histogenetic concept of three clinical variants, namely, pericoronal (follicular), extracoronal (extrafollicular), (see Article note) and peripheral.

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Section: Brief Summarymentioning

confidence: 99%

Section: Extracoronal Variantmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Development and Growth of Adenomatoid Odontogenic Tumor Related to Formation and Eruption of Teeth

Ide

Mishima

Kikuchi

et al. 2011

Head and Neck Pathol

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Aggressive growth and neoplastic potential of odontogenic cysts.With special reference to central epidermoid and mucoepidermoid carcinomas

Eversole

Sabes

Rovin

1975

Cancer

265

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An aggressive form of odontogenic cyst known as the keratocyst has been reviewed with a report on the findings of 70 new instances. Recurrence after 2 years of followup was found to be 20%. From both a review of the literature and original cases, carcinomatous and ameloblastomatous transformation in odontogenic keratocysts seems to be an extremely rare phenomenon. Alternatively, epidermoid carcinoma and mucoepidermoid carcinoma arising centrally within the jaws are often associated with other types of dental cysts. Review of 36 instances of central epidermoid carcinoma has disclosed that 75% were associated with a cyst lining; the 2‐year survival rate was found to be 53%. Central mucoepidermoid carcinoma was associated with a dental cyst or impacted tooth in 48% of the cases, and enjoyed a 100% 2‐year and 5‐year survival; however, 2 patients were recorded alive with disease at 4 months and 10 years, whereas another patient succumbed to disease 14 years post‐operatively.

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Adenomatoid odontogenic tumor.Ultrastructural demonstration of two cell types and amyloid

Smith¹,

Olson²,

Hutchins³

et al. 1979

Cancer

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A typical adenomatoid odontogenic tumor removed from a 13-year-old female was studied by light and electron microscopy. The tumor was composed of two types of epithelial cells: Type I cells were cuboidal and occurred in nests or formed ductlike structures and Type II cells were smaller and spindle shaped. The formation of extracellular masses of amyloid was found in association with Type I epithelial cells, and amyloid formation was not observed in association with Type II cells. Results suggest that the lesion is of enamel organ origin, derived from cells of the inner enamel epithelium at the pre-ameloblastic stage, stellate reticulum and stratum intermedium. The origin of this amyloid material is unknown; however, it may be of enamel protein origin which, like amyloid, may have a beta-protein conformation.

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Odontogenic adenomatoid tumor (adenoameloblastoma)

Cited by 104 publications

References 37 publications

Development and Growth of Adenomatoid Odontogenic Tumor Related to Formation and Eruption of Teeth

Development and Growth of Adenomatoid Odontogenic Tumor Related to Formation and Eruption of Teeth

Aggressive growth and neoplastic potential of odontogenic cysts.With special reference to central epidermoid and mucoepidermoid carcinomas

Adenomatoid odontogenic tumor.Ultrastructural demonstration of two cell types and amyloid

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