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Case 51930

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Referral category

Disease / syndrome / tumor / condition

Region of interest

27

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Canaray 51930

1. Possible malignancy in left infratemporal fossa

An infiltrative soft tissue mass is present on the posterior wall of the left maxillary sinus. Multiple erosive defects are present on the posterior wall of the left maxillary sinus. The mucosa is thickened on the posterior wall of the left maxillary sinus. This radiographic appearance is suggestive of the presence of a malignancy that originates in the infratemporal region and extends through the posterior wall of the left maxillary sinus. The skull base is thin, but remains intact adjacent to the infratemporal region. Immediate investigation of this region via medical imaging is recommended.

Axial views of maxilla

These axial cross-sectional images demonstrate the normal appearance of the posterior wall of the right maxillary sinus, as well as the defects in the posterior wall of the left maxillary sinus. The presence of a soft tissue mass on the posterior wall of the left maxillary sinus is supportive of the diagnosis of an infiltrative malignancy originating in the infratemporal region.

Sagittal views of left maxillary sinus

These sagittal cross-sectional images demonstrate the dehiscence that is present in the posterior wall of the left maxillary sinus, as well as the soft tissue mass that is present in this region.

2. Buccal extension of soft tissue mass adjacent to the left maxilla

The soft tissue mass that originates in the left infratemporal region extends buccally around the maxillary alveolar process into the region anteromedial to the masseter. Soft tissue is not effectively imaged with a cone beam CT scanner. The true extent of the entity can be determined with medical imaging.

3. Widened PDL space on tooth 27

The periapical periodontal ligament spaces of the mesiobuccal and distobuccal roots of tooth 27 are slightly widened. This most likely represents a non-significant finding, and is not the source of the patient's symptoms.

4. Calcified stylohyoid ligaments

The stylohyoid ligaments are partially calcified bilaterally. This is an incidental finding with no clinical significance.