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Disease / syndrome / tumor / condition
Region of interest
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1. Simple bone cyst around teeth 36 and 37
A well-defined, radiolucent entity with a well-defined undulating periphery is present around the roots of teeth 36 and 37. One well-defined septum is present in the periapical region of the distal root of the tooth 36. The lamina duras have generally not been affected around the roots of teeth 36 and 37, which is pathognomonic of a simple bone cyst. Mild expansion of the lingual cortical plate has occurred. There have been no other effect on the surrounding structures. Due to the presence of mild motion artifacts in this scan in this region, the smallest radiographic features, such as the paperthin lingual cortical plate and the lamina dura surrounding the teeth, are not clearly visible. Periodic radiographic follow-up or surgical intervention is recommended.
Axial of posterior third quadrant
These axial cross-sectional images demonstrate the thinning of the buccal and lingual cortical plates in the periapical regions of teeth 36 and 37, as well as the mild lingual expansion of the mandibular body in the periapical region of tooth 36. The roots of teeth 36 and 37 have not been affected, and do not exhibit any displacement or damage. The lesion scallops into the furcation of tooth 36 in the interradicular region of teeth 36 and 37. This is characteristic of a simple bone cyst. The delicately corticated periphery of the entity is also supportive of the diagnosis.
Buccolingual views of posterior third quadrant
These buccolingual cross-sectional images demonstrate the mild expansion of the lingual cortical plate in the periapical region of the mesial root of tooth 36. The radiolucent internal structure of the lesion is evident in images.
Mesiodistal views of posterior third quadrant
The scalloped periphery of the simple bone cyst is evident in these images. Note the absence of any root resorption or damage to the roots of teeth 36 and 37.