Imaging Sci Dent.  2013 Jun;43(2):111-115. 10.5624/isd.2013.43.2.111.

Adenomatoid odontogenic tumor of the mandible with unusual radiographic features: A case report

• Narayanan
• Naidu G
• Ragavendra R
• Mhaske-Jedhe S
• Haldar M

• KMID: 1974438
• DOI: http://doi.org/10.5624/isd.2013.43.2.111

Abstract

Adenomatoid odontogenic tumor (AOT) usually presents as a unilocular, pericoronal radiolucency in the maxillary anterior region in adolescent females. Very few conditions occur in such a narrow age range and at such a restrictive site. Rarely, these tumors present with varied clinical features. A case of AOT of the mandible is reported with unusual features such as large size, multilocular appearance, and aggressive behavior. The role of radiology in diagnosis of atypical AOT is extremely important. The unique radiological manifestations of the lesion helped in the diagnosis, and it was managed conservatively with no evidence of recurrence.

Keyword

Adenomatoid Odontogenic Tumor; Mandible; Odontogenic Tumors; Root Resorption

MeSH Terms

Adolescent
Ameloblastoma
Female
Humans
Mandible
Odontogenic Tumors
Recurrence
Root Resorption
Ameloblastoma

Figure

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  Fig. 1 A. An extraoral photograph shows swelling of the mandible. B. Intraoral photograph shows swelling in the anterior mandible.

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  Fig. 2 A. A panoramic radiograph shows the large radiolucent lesion of the mandible with the impacted and displaced left mandibular incisor and root resorption. B. A mandibular cross-sectional occlusal radiograph reveals buccolingual expansion, thinning, and erosion of the cortices, multiple scattered radio-opaque foci, and dense septae.

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  Fig. 3 A. An axial CT image shows the expansile radiolucent lesion with multiple radiopaque flecks towards the periphery. B. An axial CT image of the bone window shows the thinning and discontinuity of the lingual and buccal cortices. C. A coronal CT image shows a large expansile lesion and the soft tissue capsule at the periphery.

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  Fig. 4 A. A three-dimensional CT image (anterior view) depicts the lesion in the mandible and the position of the impacted tooth. B. A three-dimensional CT image (occlusal view) reveals the dense lingual septae and multilocular appearance.

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  Fig. 5 A photomicrograph shows the odontogenic epithelium arranged in whorls and a duct-like arrangement along with the foci of basophilic calcifications (H&E stain, 40×).

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  Fig. 6 A six month postoperative panoramic radiograph shows normal healing and no signs of recurrence.

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