Imaging Sci Dent.  2015 Mar;45(1):49-54. 10.5624/isd.2015.45.1.49.

Unusually large erupted complex odontoma: A rare case report

  • 1Department of Oral Medicine and Radiology, ITS Centre for Dental Studies and Research, Murad Nagar, Ghaziabad, Uttar Pradesh, India.


Odontomas are nonaggressive, hamartomatous developmental malformations composed of mature tooth substances and may be compound or complex depending on the extent of morphodifferentiation or on their resemblance to normal teeth. Among them, complex odontomas are relatively rare tumors. They are usually asymptomatic in nature. Occasionally, these tumors become large, causing bone expansion followed by facial asymmetry. Odontoma eruptions are uncommon, and thus far, very few cases of erupted complex odontomas have been reported in the literature. Here, we report the case of an unusually large, painless, complex odontoma located in the right posterior mandible.


Odontoma; Mandible; Odontogenic Tumors; Facial Asymmetry

MeSH Terms

Facial Asymmetry
Odontogenic Tumors


  • Fig. 1 Extraoral photograph shows gross facial asymmetry.

  • Fig. 2 Intraoral photograph shows a swelling with an ulcer on the buccal mucosa.

  • Fig. 3 Panoramic radiograph shows the lesion as a well-defined radiopacity surrounded by a radiolucent halo with secondary inferior displacement and oblique horizontal impaction of the right mandibular second premolar.

  • Fig. 4 A. Sagittal section of cone-beam computed tomography (CBCT) shows a dense homogeneous ground-glass radiopaque matrix with a horizontally aligned distinct molar-like tooth, adherent to the posteroinferior third of the mass. B. Axial section of CBCT shows the similar features of the sagittal section with a buccolingual expansion of the mandible. C. Coronal section of CBCT shows the similar features of the axial and sagittal sections with a buccolingual expansion and a tooth in the inferior portion of the lesion. Three-dimensional images of the lesion in the anteroposterior view (D) lateral view (E) submental view (F) show the expansion of cortical bones.

  • Fig. 5 Excised lesion weighing 43.5 g

  • Fig. 6 A. Ground section of complex odontoma (40×). B. Hematoxylin and eosin stained at 10× magnification. C. Hematoxylin and eosin stained at 40× magnification

Cited by  1 articles

Giant complex odontoma in the posterior mandible: A case report and literature review
Jong Chan Park, Ji Ho Yang, Sung Youn Jo, Bong Chul Kim, Jun Lee, Wan Lee
Imaging Sci Dent. 2018;48(4):289-293.    doi: 10.5624/isd.2018.48.4.289.


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