Title: The role of MRI and CT in diagnosis and treatment planning of cherubism: a 13-year follow-up case report
Abstract: Aim Cherubism is characterised by mesenchymal
alterations during the development of the jaws secondary
to perivascular fibrosis. According to the ALARA (As Low
As Reasonably Achievable) principle, it is important to
avoid conditions where the amount of radiation used is
more than that needed for the procedure, because there
is no benefit from unnecessary radiation. However, the
use of MRI has been poorly studied in cherubism.
Materials and methods The patient underwent
head and neck MRI and 3D CT for imaging assessment.
Results MRI is necessary to evaluate the extension
of dysplastic tissue and the cystic part of the lesions.
Bone window CT only allows evaluation of strong
densitometric alterations of cherubism lesions. Moreover,
on radiographic film it is not always possible to distinguish
fibrous tissue from mucous pseudocystic tissue. By
contrast, these differences are readily evident on MRI.
Conclusion MRI, in addition to other traditional
radiographs and CT, could be useful in helping the
clinician in the diagnosis and treatment of cherubism.