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Maxillary adenomatoid odontogenic tumor associated with a premolar.

Kalia V, Kalra G, Kaushal N, Sharma V, Vermani M - Ann Maxillofac Surg (2015 Jan-Jun)

Bottom Line: The adenomatoid odontogenic tumor (AOT) represents 3-7% of all odontogenic tumors, and over 750 cases have been reported in the literature.Consequently, the WHO (2005) classification of odontogenic lesions considered this process to represent a mixed odontogenic neoplasm.We present a case of a 12-year-old female patient with an AOT of diameter 5 cm × 5 cm located in the anterolateral region of the maxilla in association with an impacted premolar tooth.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral, Maxillofacial Surgery, BRS Dental College and Hospital, Panchkula, Haryana, India.

ABSTRACT
The adenomatoid odontogenic tumor (AOT) represents 3-7% of all odontogenic tumors, and over 750 cases have been reported in the literature. This lesion was formerly considered to be a variant of the ameloblastoma and was designated as adenoameloblastoma. These lesions may infrequently produce dentinoid material and rarely enamel matrix. Consequently, the WHO (2005) classification of odontogenic lesions considered this process to represent a mixed odontogenic neoplasm. We present a case of a 12-year-old female patient with an AOT of diameter 5 cm × 5 cm located in the anterolateral region of the maxilla in association with an impacted premolar tooth. The rarity of AOT, association of this lesion with regards to maxillary premolar, the exaggerated size at presentation, the eruption of the displaced canine postoperatively and uneventful healing of the bony defect without adjunctive therapy makes this case unique.

No MeSH data available.


Related in: MedlinePlus

Pictomicrograph (H and E, ×10)
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Figure 6: Pictomicrograph (H and E, ×10)

Mentions: The histopathological picture [Figure 6] of the biopsy sample revealed epithelium and underlying connective tissue stoma. The tumor cells were seen arranged in various patterns firstly, duct-like structures of varying sizes which were lined by cuboidal cells with a lumen lined by an eosinophilic rim of varying thickness. Secondly, rosettes like structures lined by tall columnar cells with hyperchromatic polarized nuclei were seen [Figure 7]. The connective tissue also showed the presence of multiple calcified structures along with amorphous eosinophilic material at a few places. The histopathologic diagnosis confirmed the lesion to be a follicular AOT.


Maxillary adenomatoid odontogenic tumor associated with a premolar.

Kalia V, Kalra G, Kaushal N, Sharma V, Vermani M - Ann Maxillofac Surg (2015 Jan-Jun)

Pictomicrograph (H and E, ×10)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4555936&req=5

Figure 6: Pictomicrograph (H and E, ×10)
Mentions: The histopathological picture [Figure 6] of the biopsy sample revealed epithelium and underlying connective tissue stoma. The tumor cells were seen arranged in various patterns firstly, duct-like structures of varying sizes which were lined by cuboidal cells with a lumen lined by an eosinophilic rim of varying thickness. Secondly, rosettes like structures lined by tall columnar cells with hyperchromatic polarized nuclei were seen [Figure 7]. The connective tissue also showed the presence of multiple calcified structures along with amorphous eosinophilic material at a few places. The histopathologic diagnosis confirmed the lesion to be a follicular AOT.

Bottom Line: The adenomatoid odontogenic tumor (AOT) represents 3-7% of all odontogenic tumors, and over 750 cases have been reported in the literature.Consequently, the WHO (2005) classification of odontogenic lesions considered this process to represent a mixed odontogenic neoplasm.We present a case of a 12-year-old female patient with an AOT of diameter 5 cm × 5 cm located in the anterolateral region of the maxilla in association with an impacted premolar tooth.

View Article: PubMed Central - PubMed

Affiliation: Department of Oral, Maxillofacial Surgery, BRS Dental College and Hospital, Panchkula, Haryana, India.

ABSTRACT
The adenomatoid odontogenic tumor (AOT) represents 3-7% of all odontogenic tumors, and over 750 cases have been reported in the literature. This lesion was formerly considered to be a variant of the ameloblastoma and was designated as adenoameloblastoma. These lesions may infrequently produce dentinoid material and rarely enamel matrix. Consequently, the WHO (2005) classification of odontogenic lesions considered this process to represent a mixed odontogenic neoplasm. We present a case of a 12-year-old female patient with an AOT of diameter 5 cm × 5 cm located in the anterolateral region of the maxilla in association with an impacted premolar tooth. The rarity of AOT, association of this lesion with regards to maxillary premolar, the exaggerated size at presentation, the eruption of the displaced canine postoperatively and uneventful healing of the bony defect without adjunctive therapy makes this case unique.

No MeSH data available.


Related in: MedlinePlus