Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2017 Feb;46(2):20160232.
doi: 10.1259/dmfr.20160232. Epub 2016 Dec 12.

Characteristic features of the odontogenic myxoma on cone beam computed tomography

Kaili Wang  1 , Wenhao Guo  1 , Meng You  2 , Li Liu  2 , Bei Tang  2 , Guangning Zheng  2
Affiliations

Characteristic features of the odontogenic myxoma on cone beam computed tomography

Kaili Wang et al. Dentomaxillofac Radiol. 2017 Feb.

Abstract

Objectives: To illustrate the characteristic features of odontogenic myxoma (OM) on CBCT.

Methods: From 52 subjects with histopathologically diagnosed OMs, 18 subjects who underwent a CBCT examination were retrieved between May 2009 and April 2016. Features on CBCT images and clinical records were carefully observed and analyzed.

Results: Characteristic features include: (1) fine and straight septa that were recognized to separate the tumour into triangular, square or rectangular spaces, which appeared as "tennis racket" or "honeycomb" patterns; (2) septa that frequently scattered to the borders of lesions and appeared perpendicular to the margins; (3) tooth displacement and resorption that were seen in most of the OM lesions; (4) OMs that were noted to have a tendency to involve the alveolar process, scallop between the roots and affect the integrity of the alveolar ridge; (5) the cortex of OMs that appeared normally perforated and the edge of the cortex expanded into the soft tissue.

Conclusions: CBCT is highly effective in demonstrating the comprehensive internal structures of the lesions precisely and providing detailed information for the diagnosis of OM.

Keywords: CBCT; characteristic feature; myxofibroma; odontogenic myxoma; odontogenic tumour.

PubMed Disclaimer

Figures

Figure 1
Figure 1
Distribution of 18 odontogenic myxomas by age and gender.
Figure 2
Figure 2
The multilocular lesion that occurred in the right posterior of the mandible: the axial view (a) is showing a lesion with an ill-defined border and diffuse margin. The sagittal view (b) is showing that the septa are thick, resembling a honeycomb pattern (arrow). The coronal view (c) is showing that the cortex is perforated.
Figure 3
Figure 3
The axial view (a) and sagittal view (b) of the left maxilla are showing that the septa (white arrow) have scattered in the periphery of the lesion showing the pattern of the strings of a tennis racket. The sagittal view (c) and coronal view (d) are showing a sunburst appearance (black arrows) and that the lesion has involved the left maxillary sinus and the alveolar process.
Figure 4
Figure 4
The axial view (a), sagittal view (b) and coronal view (c) are showing that the tumour located in the right posterior region of the mandible and the continuity of the cortex has been interrupted, and the edge of the cortex (white arrows) has expanded into the soft tissue lingually. The sagittal view (b) is showing that the septa are perpendicular to the margins (black arrow).
Figure 5
Figure 5
CBCT showing the tumour located in the left side of the maxilla: the axial view (a) is showing that the tumour has involved the maxillary sinus, hard palate and nasal cavity. The sagittal view (b) is showing that the second and third molars are displaced. The coronal view (c) is showing that the mesiobuccal root of the first molar has been absorbed.
Figure 6
Figure 6
CBCT showing the tumour located in the anterior of the mandible: the axial view (a), sagittal view (b, c) and coronal view (d) are showing that the cortex is perforated and radiopaque lines (arrows) are extending from the periosteum, resembling a “sunburst” appearance. The alveolar process is involved.
Figure 7
Figure 7
The axial view (a) is showing that the tumour is located in the right mandible. The sagittal view (b) and coronal view (c) are showing that this lesion has surrounded the crown of the impacted premolars with a well-defined border, clear margin, homogeneous density and cortical continuity.
Figure 8
Figure 8
The size of odontogenic myxomas: the first 3 are unilocular and the following 15 are multilocular.
See this image and copyright information in PMC

References

    1. Kheir E, Stephen L, Nortje C, van Rensburg LJ, Titinchi F. The imaging characteristics of odontogenic myxoma and a comparison of three different imaging modalities. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 116: 492–502. doi: https://doi.org/10.1016/j.oooo.2013.05.018 - DOI - PubMed
    1. Araki M, Kameoka S, Matsumoto N, Komiyama K. Usefulness of cone beam computed tomography for odontogenic myxoma. Dentomaxillofac Radiol 2007; 36: 423–7. doi: https://doi.org/10.1259/dmfr/85361774 - DOI - PubMed
    1. Noffke CE, Raubenheimer EJ, Chabikuli NJ, Bouckaert MM. Odontogenic myxoma: review of the literature and report of 30 cases from South Africa. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007; 104: 101–9. doi: https://doi.org/10.1016/j.tripleo.2007.01.026 - DOI - PubMed
    1. Simon EN, Merkx MA, Vuhahula E, Ngassapa D, Stoelinga PJ. Odontogenic myxoma: a clinicopathological study of 33 cases. Int J Oral Maxillofac Surg 2004; 33: 333–7. doi: https://doi.org/10.1016/j.ijom.2003.12.004 - DOI - PubMed
    1. Li TJ, Sun LS, Luo HY. Odontogenic myxoma: a clinicopathologic study of 25 cases. Arch Pathol Lab Med 2006; 130: 1799–806. doi: https://doi.org/10.1043/1543-2165(2006)130[1799:OMACSO]2.0.CO;2 - DOI - PubMed