Aneurysmal bone cyst of the mandible

Case contributed by Dr Mauricio Macagnan


Patient with mass in the left jaw 8 years ago. Negative for trauma.

Patient Data

Age: 20 years
Gender: Female

Large lytic lesion, blowing of cystic aspect, preserving thin laminar cortical, affecting much of the right mandible.


Post-op - 8 years after

Reconstruction of the right jaw with bone grafting and use of plates and metal screws. Increased adjacent soft tissue surgical site, with mild cervical lymphadenopathy, ipsilateral.

Case Discussion

Aneurysmal bone cysts have characteristics of a well-defined expansile osteolytic lesion, painful, usually affecting younger patients below 30 year old. The lesions develop normally around the knee, but also appear in other locations such as the proximal humerus or spine, but many other bones are also possible. In this case, the characteristics of the lesion are typical, but the location in the jaw is not a typical site. This patient was diagnosed early, however the treatment was delayed.

This case was kindly provided by Dr José Golin da Costa.

PlayAdd to Share

Case information

rID: 43280
Published: 11th Oct 2016
Last edited: 8th Apr 2020
Inclusion in quiz mode: Included

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.