5.2.24
Quick Review #130 - #pathology #oralpathology #doctorgallagher #oralsurgery #oralsurgeon #dentist #dentistry #dental
The adenomatoid odontogenic tumor (AOT) is a benign (non-cancerous) odontogenic tumor, meaning it originates from the tissues involved in tooth development, and it is often referred to as the "tumor of 2/3's" for its typical patterns of occurrence:
1. Age Group: Approximately two-thirds of AOT cases occur in patients who are under 20 years old. It is more common in females than in males.
2. Location: About two-thirds of the cases involve the anterior region of the jaws, particularly the maxilla (upper jaw) more than the mandible (lower jaw).
3. Association with Teeth: Two-thirds of AOTs are associated with an impacted tooth, often the canine.
• Clinical Presentation: AOT usually presents as a painless, slow-growing swelling, causing displacement of adjacent teeth. It may also be discovered incidentally on dental X-rays as it often does not produce symptoms.
• Radiographic Features: On dental X-rays, AOT typically appears as a well-defined, radiolucent (dark) lesion surrounding the crown of an unerupted tooth. It can sometimes show a mixed radiolucent and radiopaque (light) appearance due to calcified structures within the tumor.
• Histological Characteristics: Microscopically, AOT is characterized by odontogenic epithelium in a variety of patterns, including rosette-like, duct-like, and sheets. It is often embedded in a fibrous stroma with varying degrees of calcification.
References:
1. Mutalik, V. S., Shreshtha, A., Mutalik, S. S., & Radhakrishnan, R. (2012). Adenomatoid odontogenic tumor: A unique report with histological diversity. Journal of Oral and Maxillofacial Pathology, 16(1), 118-121. https://lnkd.in/dmy8Eb-v
2. Philipsen, H. P., Reichart, P. A., Siar, C. H., Ng, K. H., Lau, S. H., & Zhang, X. (2010). An updated clinical and epidemiological profile of the adenomatoid odontogenic tumour: a collaborative retrospective study. Journal of Oral Pathology & Medicine, 36(7), 383-393. https://lnkd.in/dKGewGWU
3. Rick, G. M. (2006). Adenomatoid odontogenic tumor. Oral and Maxillofacial Surgery Clinics of North America, 18(3), 409-418. https://lnkd.in/dBWsSXWP
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