Presentation
Painless swelling of the left mandibular region.
Patient Data
Expansile left mandibular lytic lesion centered on the ramus and mandibular angle with cortical thinning and destruction.
On the MRI, this lytic lesion displays an isosignal to muscles on T1, high signal on T2 and FLAIR with restricted diffusion on DWI/ADC. The postcontrast sequences demonstrate a thin peripheral rim enhancement. No soft tissue component. Normal appearance of the adjacent muscles (medial pterygoid and masster).
Small cervical cord hydromyelia is noted (incidental finding).
Case Discussion
Cone-beam CT and MRI features of a left mandibular lytic lesion with no soft tissue component and restricted diffusion on the MRI exam, pathologically proven as epidermoid cyst.
Unable to process the form. Check for errors and try again.